M. Sanjayan Biography – Conservation Scientist, Career, TV Shows & Achievements
Updated: Oct 4
Dr. M. Sanjayan is a conservation scientist, ecologist, writer, television presenter and environmental leader known for connecting scientific research with stories about people, wildlife and the natural world.
Born in Sri Lanka and raised partly in West Africa, Sanjayan developed a perspective shaped by different cultures and environments. His scientific career eventually took him into conservation biology, where his research examined topics including wildlife, ecosystems, migration and the relationship between conservation and human well-being.
He became particularly well known to the public through television.
Sanjayan has hosted and contributed to documentaries for PBS, BBC, National Geographic, Discovery and other major media organizations. His programs have taken him from African savannas and Australian deserts to tropical forests, rivers, oceans and climate-vulnerable ecosystems.
Among his best-known television projects are Earth: A New Wild, Life at the Waterhole, Big Blue Live and the long-term PBS/BBC project Changing Planet.
His career also includes a major leadership chapter at Conservation International. Sanjayan became CEO in 2017 and led the organization for eight years before stepping down in August 2025. During his tenure, Conservation International launched major conservation-finance initiatives, expanded partnerships with Indigenous peoples and local communities, and conducted two landmark capital campaigns totaling $2.7 billion.
Today, his legacy combines conservation science, environmental storytelling, climate communication and efforts to demonstrate that protecting nature can also improve human well-being.
M. Sanjayan Biography at a Glance
Information | Details |
Full Name | M. Sanjayan |
Profession | Conservation Scientist, Ecologist, Writer, Television Presenter |
Birth Country | Sri Lanka |
Raised In | West Africa and Southeast Asia |
Education | University of Oregon; University of California, Santa Cruz |
Master's Degree | University of Oregon |
PhD | Conservation Biology, University of California, Santa Cruz |
Scientific Field | Conservation Biology, Ecology, Wildlife & Human Well-Being |
Former Major Role | CEO, Conservation International |
Conservation International CEO | 2017–2025 |
Former Scientific Organization | The Nature Conservancy |
Major TV Series | Earth: A New Wild, Life at the Waterhole, Changing Planet |
Major Media Partners | PBS, BBC, National Geographic, Discovery |
Known For | Conservation science and environmental storytelling |
TIME Recognition | TIME100 Climate |
Major Focus | Biodiversity, climate, wildlife, conservation and communities |
Who Is M. Sanjayan?
M. Sanjayan is a conservation scientist who has spent much of his career asking an important question:
How can protecting nature also improve people's lives?
This question distinguishes his approach from conservation that focuses exclusively on wildlife or protected areas.
Sanjayan's work explores the connections between:
Wildlife
Ecosystems
Climate change
Human communities
Indigenous knowledge
Conservation economics
Public policy
Human well-being
His scientific background gives him the ability to study environmental problems.
His communication skills allow him to explain those problems to millions of people through television.
And his leadership experience has allowed him to work with governments, businesses, communities and conservation organizations.
That combination has made him an unusual figure in modern environmental communication.
M. Sanjayan Early Life
M. Sanjayan was born in Sri Lanka and spent part of his childhood growing up in West Africa.
His early experiences exposed him to very different landscapes, cultures and relationships with nature.
Growing up across different regions helped him develop an appreciation for the fact that environmental problems do not affect every community in the same way.
A forest can represent biodiversity to a scientist.
It can represent food and medicine to a local community.
It can provide spiritual or cultural value to Indigenous people.
And it can represent economic resources to a government or company.
Sanjayan's later career repeatedly explored these different perspectives.
Conservation International notes that his background in Sri Lanka and West Africa helped shape his perspective on conservation, particularly his focus on developing countries that face significant climate and environmental risks.
M. Sanjayan Education
Sanjayan pursued higher education in the United States.
He earned a master's degree from the University of Oregon and later completed a PhD in conservation biology at the University of California, Santa Cruz.
His doctoral training provided the scientific foundation for his later work.
Conservation biology is inherently interdisciplinary.
It combines biology and ecology with questions about:
Human land use
Wildlife management
Habitat loss
Population decline
Protected areas
Climate change
Resource management
This broad perspective became a defining feature of Sanjayan's career.
M. Sanjayan Conservation Science Career
Before becoming a public television personality, Sanjayan established himself as a conservation scientist.
His scientific work has been published in journals including:
Science
Nature
Conservation Biology
His research interests have included wildlife ecology, conservation, migration and the relationship between nature and human well-being.
Rather than treating conservation as simply a matter of protecting animals, his work examines how conservation can function within human societies.
This became particularly important in developing countries where local communities depend directly on natural resources.
M. Sanjayan and The Nature Conservancy
A major stage in Sanjayan's scientific career was his work with The Nature Conservancy.
He served as the organization's lead scientist.
During this period, he worked on conservation issues across different parts of the world.
His work included scientific research and field projects examining how conservation strategies could work in real landscapes.
He became increasingly interested in the relationship between conservation and human communities.
This helped establish the foundation for his later leadership role at Conservation International.
M. Sanjayan and Wildlife Conservation
Sanjayan's conservation work has covered a wide range of ecosystems and species.
His field experiences have included:
African wildlife
Tropical forests
Rivers
Marine ecosystems
Grasslands
Arctic environments
Desert ecosystems
Migratory wildlife
He has also emphasized that conservation cannot simply separate humans from nature.
In many parts of the world, people and wildlife share the same landscapes.
Successful conservation therefore requires finding ways for both to coexist.
M. Sanjayan and Conservation International
Sanjayan joined Conservation International and eventually became one of its most visible scientific leaders.
He was appointed CEO in 2017.
His tenure marked a period of significant growth and innovation for the organization.
Under his leadership, Conservation International pursued major initiatives involving:
Climate solutions
Forest protection
Ocean conservation
Conservation finance
Biodiversity
Indigenous partnerships
Sustainable development
The organization also launched two landmark capital campaigns totaling $2.7 billion during his tenure.
M. Sanjayan as CEO of Conservation International
As CEO, Sanjayan worked to move conservation beyond traditional nonprofit fundraising.
One of his major areas of interest was conservation finance.
The idea is straightforward:
Protecting nature requires enormous amounts of money.
Governments and nonprofit organizations alone cannot always provide enough.
Therefore, conservation needs new financial mechanisms that can attract private investment while delivering environmental benefits.
Under Sanjayan's leadership, Conservation International developed and supported innovative conservation-finance approaches designed to unlock larger amounts of funding for nature.
M. Sanjayan and Conservation Finance
Sanjayan has argued that nature itself provides enormous economic value.
Forests store carbon.
Wetlands reduce flooding.
Healthy oceans support fisheries.
Coral reefs protect coastlines.
Rivers provide water.
Biodiversity supports food systems and medicine.
Yet these services are often not adequately reflected in financial decisions.
His work therefore explored ways of making nature's value more visible in economic and investment systems.
This became an increasingly important part of modern conservation.
M. Sanjayan and the Blue Nature Alliance
During Sanjayan's leadership at Conservation International, the organization became involved in the Blue Nature Alliance, an international effort focused on expanding ocean protection.
The initiative aimed to support the protection of enormous areas of ocean while working with governments, Indigenous peoples, local communities and other partners.
UCLA's profile of Sanjayan notes that the alliance aimed to protect 18 million square kilometers of ocean over five years.
The project reflected Sanjayan's belief that conservation must operate at a scale matching the size of environmental problems.
M. Sanjayan and Forest Conservation
Forests are another major focus of Sanjayan's work.
Tropical forests are important because they:
Store carbon
Support biodiversity
Regulate water
Provide food and livelihoods
Support Indigenous communities
Influence regional climates
Deforestation therefore creates several problems simultaneously.
It destroys habitat.
It releases carbon.
It threatens communities.
And it reduces the planet's natural ability to regulate climate.
Sanjayan has promoted forest protection as both a biodiversity strategy and a climate strategy.
M. Sanjayan and Climate Change
Climate change has become a central theme of Sanjayan's scientific and communication work.
He has repeatedly emphasized that climate change is not simply a future problem.
It is already affecting ecosystems and communities.
His work has examined climate impacts on:
Forests
Oceans
Rivers
Coral reefs
Arctic ecosystems
Grasslands
Wildlife
At the same time, he emphasizes that nature itself can be part of the climate solution.
Forests, wetlands, mangroves and healthy soils can store carbon.
But Sanjayan also cautions that nature-based solutions cannot replace the need to reduce greenhouse-gas emissions.
Conservation International has highlighted his view that nature is an essential climate tool but cannot be treated as a substitute for emissions reductions.
M. Sanjayan and Earth: A New Wild
One of Sanjayan's major breakthroughs as a television presenter came with Earth: A New Wild.
The five-part PBS series premiered in 2015.
The program explored the relationship between humans and the natural world.
Rather than presenting wilderness as a place completely separate from people, Sanjayan showed how humans and wildlife interact.
The series travelled to 29 countries during its production and featured animals ranging from giant pandas and humpback whales to African lions and Arctic reindeer.
A Different Kind of Wildlife Documentary
Traditional wildlife documentaries often place humans behind the camera.
Earth: A New Wild deliberately turned the camera toward human relationships with nature.
Its central idea was:
Humans are part of the natural world, not outside it.
That became one of the recurring themes of Sanjayan's television career.
M. Sanjayan and Life at the Waterhole
In 2021, Sanjayan hosted the PBS/BBC series Life at the Waterhole.
The three-part series examined the ecological importance of an African waterhole.
The production used specially designed remote cameras to observe wildlife around the waterhole at different times of day and night.
Sanjayan also worked with scientists and local communities, including Hadzabe and Maasai communities, during the project.
The series demonstrated how a single source of water can become the center of an entire ecosystem.
Elephants, predators, birds and herbivores all respond to changes in water availability.
The waterhole effectively becomes a natural meeting point.
M. Sanjayan and Big Blue Live
Sanjayan also served as an on-air science contributor for Big Blue Live, a PBS/BBC production focused on marine life around California's Monterey Bay.
The program followed animals including:
Humpback whales
Sharks
Sea otters
Sea lions
Seabirds
The project combined live broadcasting with marine science.
Sanjayan's role helped translate scientific information into accessible stories for television audiences.
M. Sanjayan and Changing Planet
One of Sanjayan's most ambitious television projects is Changing Planet.
The PBS/BBC project was designed as a seven-year environmental health check of some of Earth's most vulnerable ecosystems.
The series began in 2022.
Sanjayan has travelled to different parts of the world to document how climate change is affecting ecosystems and how communities are responding.
The locations have included:
California
The Maldives
Cambodia
Kenya
Iceland
Brazil
Australia
Arctic regions
The series does not only document environmental problems.
It also searches for solutions.
That distinction is central to Sanjayan's communication style.
M. Sanjayan Changing Planet Philosophy
The goal of Changing Planet is not simply to tell viewers:
“The planet is in trouble.”
Instead, the project asks:
“What are people doing about it?”
Each ecosystem becomes a case study.
Scientists measure change.
Local communities experience change.
Indigenous peoples contribute knowledge.
Conservation organizations test solutions.
And viewers can return year after year to see whether those solutions are working.
PBS describes the project as an effort to revisit vulnerable habitats and monitor both environmental changes and community responses over seven years.
M. Sanjayan and River Conservation
Later seasons of Changing Planet have examined the world's rivers.
Rivers are essential to both people and ecosystems.
They provide:
Drinking water
Food
Agriculture
Transportation
Wildlife habitat
Cultural value
But rivers are increasingly affected by:
Pollution
Dams
Water extraction
Climate change
Habitat destruction
PBS's current Changing Planet material highlights projects involving the Klamath River in California and the Seine River in France as examples of major river restoration efforts.
M. Sanjayan and Indigenous Communities
Indigenous communities are an important part of Sanjayan's conservation philosophy.
Many Indigenous peoples have lived within ecosystems for generations and possess detailed knowledge of wildlife, weather, plants, water and landscapes.
Effective conservation therefore cannot simply be imposed from outside.
It needs to involve the people who live there.
During his Conservation International leadership, Sanjayan emphasized partnerships with Indigenous peoples and local communities. Conservation International specifically highlighted the organization's expanded partnerships with these communities during his tenure.
M. Sanjayan Scientific Research
Sanjayan's media career sometimes overshadows his scientific background.
But he remains a trained conservation biologist.
His peer-reviewed work has appeared in respected scientific journals, including:
Science
Nature
Conservation Biology
His research has addressed conservation biology and ecological questions involving wildlife and human impacts.
He has also held academic affiliations, including work with UCLA and Arizona State University.
This scientific background is important because his television work is built around evidence rather than simply adventure storytelling.
M. Sanjayan as a Science Communicator
One of Sanjayan's greatest strengths is his ability to translate scientific research into stories.
Scientific papers can contain complicated statistics, models and terminology.
A television audience needs something different.
They need a story.
Sanjayan often begins with a place or an animal.
Then he introduces the scientific question.
Then he meets researchers or local communities.
Finally, he shows why the issue matters to ordinary people.
This approach has helped make conservation science accessible to a much wider audience.
M. Sanjayan Awards and Recognition
Sanjayan has received recognition both for his scientific work and his environmental communication.
TIME100 Climate
In 2023, TIME named M. Sanjayan to its inaugural TIME100 Climate list of influential people driving climate action in business and beyond.
Emmy Recognition
He has been associated with Emmy-nominated environmental and science programming.
Academic Recognition
His scientific work has been published in major peer-reviewed journals and he has held academic appointments and fellowships.
Media Recognition
His documentaries have received significant attention from PBS, BBC, National Geographic and other international broadcasters.
His career therefore bridges two worlds that rarely overlap so successfully:
Scientific research and mass-media storytelling.
M. Sanjayan Struggle Story
Sanjayan's career has involved challenges that are less visible than those of traditional explorers.
Making Science Accessible
Scientific research can be difficult to communicate to general audiences.
Sanjayan has had to simplify complicated concepts without losing scientific accuracy.
Showing Solutions Without Ignoring Problems
Environmental storytelling can easily become either overly pessimistic or unrealistically optimistic.
Sanjayan tries to find a balance.
He documents genuine environmental damage while also searching for communities and scientists developing solutions.
Working Across Different Cultures
His career has taken him across many countries and ecosystems.
Successful conservation requires understanding local cultures rather than applying a single universal model.
Leading a Global Organization
Running an international conservation organization is a major responsibility.
During his eight years as CEO of Conservation International, Sanjayan helped guide the organization through major fundraising campaigns, conservation-finance initiatives and global partnerships.
M. Sanjayan Success Story
Sanjayan's career is a powerful example of combining science and storytelling.
He began as a conservation scientist.
He worked in the field.
He published scientific research.
He then became a science communicator.
He appeared on television.
He hosted international documentaries.
Eventually, he became the CEO of one of the world's major conservation organizations.
This progression allowed him to work at several levels:
Field research → Science → Communication → Public awareness → Global conservation leadership
That combination is what makes his career distinctive.
M. Sanjayan and Geography
M. Sanjayan's work has a strong connection to geography because his conservation stories are fundamentally about places and the relationships within them.
His documentaries have explored:
African savannas
Tropical forests
Rivers
Coral reefs
Deserts
Arctic landscapes
Islands
Wetlands
Coastal ecosystems
Each location has its own climate, species, communities and environmental pressures.
His work shows that environmental problems are geographically different.
A drought in Africa may affect pastoralists.
A warming ocean may affect coral reefs.
A dam may transform a river ecosystem.
Deforestation may affect both biodiversity and climate.
This geographical perspective makes his work particularly valuable for understanding the planet as a connected system.
M. Sanjayan Environmental Philosophy
At the heart of Sanjayan's work is a belief that nature and people cannot be separated.
Conservation is not simply about protecting wildlife from humans.
It is about finding ways for humans to live sustainably within natural systems.
This means asking:
How can communities benefit from conservation?
How can wildlife coexist with people?
How can forests provide livelihoods without being destroyed?
How can oceans remain productive?
How can conservation finance support long-term protection?
How can Indigenous knowledge improve environmental decisions?
These questions have shaped both his scientific and media careers.
M. Sanjayan Current Work
As of 2026, M. Sanjayan is no longer CEO of Conservation International.
He stepped down in August 2025, after eight years leading the organization. Conservation International subsequently appointed Daniela Raik as interim CEO and announced Sebastian Troëng as the new CEO in February 2026.
Sanjayan remains closely associated with conservation science and environmental storytelling.
His television work also continues through projects such as Changing Planet, which remains available through PBS.
His post-CEO career therefore represents another stage in his broader mission: using science, storytelling and conservation leadership to help people understand the changing planet.
M. Sanjayan Personal Life
Sanjayan lives in Washington, D.C. with his wife and daughter.
Outside his professional work, he enjoys outdoor activities including:
Fly fishing
Birding
Cycling
Diving
His personal interests reflect the same connection with nature that appears throughout his professional life.
M. Sanjayan Net Worth
M. Sanjayan's exact personal net worth is not reliably established through authoritative public financial records.
Online estimates should therefore be treated cautiously.
His career has included scientific research, nonprofit leadership, broadcasting, writing and public speaking.
His most significant professional contribution is better measured through his scientific work, conservation leadership and environmental communication rather than speculative wealth figures.
Why M. Sanjayan Is Important
M. Sanjayan is important because he helps connect several worlds that are often separated:
Science + Television + Conservation + Communities + Policy
A scientist can publish research.
A filmmaker can create beautiful images.
A conservation organization can protect land.
A community can possess generations of ecological knowledge.
Sanjayan's career brings these elements together.
His documentaries make scientific research understandable.
His conservation work turns scientific knowledge into action.
And his focus on people reminds audiences that environmental protection ultimately affects human lives as well.
M. Sanjayan Legacy
M. Sanjayan's long-term legacy is still developing, but several contributions already stand out.
Conservation Science
He has contributed scientific research to the field of conservation biology.
Global Conservation Leadership
As CEO of Conservation International, he helped guide major conservation-finance and environmental initiatives for eight years.
Wildlife Storytelling
Through documentaries, he has introduced millions of viewers to wildlife and ecosystems around the world.
Climate Communication
His work has helped explain climate change through real places and real communities.
Human-Nature Connection
He has consistently challenged the idea that humans and nature exist in separate worlds.
Hope Through Conservation
Perhaps most importantly, his storytelling focuses not only on what is being lost, but also on what people can still save.
Frequently Asked Questions About M. Sanjayan
Who Is M. Sanjayan?
M. Sanjayan is a conservation scientist, ecologist, writer, television presenter and environmental leader known for his work in conservation biology and environmental storytelling.
Where Was M. Sanjayan Born?
M. Sanjayan was born in Sri Lanka and was raised partly in West Africa.
What Did M. Sanjayan Study?
He earned a master's degree from the University of Oregon and a PhD in conservation biology from the University of California, Santa Cruz.
What Is M. Sanjayan Famous For?
He is known for conservation science and for hosting environmental documentaries such as Earth: A New Wild, Life at the Waterhole and Changing Planet.
Was M. Sanjayan the CEO of Conservation International?
Yes. He served as CEO from 2017 until August 2025.
Is M. Sanjayan Still the CEO of Conservation International?
No. He stepped down in 2025. Conservation International appointed Sebastian Troëng as CEO in 2026.
What Is Earth: A New Wild?
Earth: A New Wild is a five-part PBS series hosted by Sanjayan that explores the relationship between humans, wildlife and natural ecosystems.
What Is Changing Planet?
Changing Planet is a long-term PBS/BBC environmental project that follows vulnerable ecosystems and the people working to protect them over a seven-year period.
What Is Life at the Waterhole?
Life at the Waterhole is a three-part PBS/BBC wildlife series hosted by Sanjayan that examines the ecological role of an African waterhole.
Has M. Sanjayan Written Scientific Research?
Yes. His peer-reviewed scientific work has appeared in journals including Science, Nature and Conservation Biology.
Has M. Sanjayan Received Any Major Recognition?
Yes. In 2023, TIME named him to its inaugural TIME100 Climate list recognizing influential climate-action leaders.
What Is M. Sanjayan's Main Environmental Message?
One of his central ideas is that conservation should benefit both nature and people. Protecting ecosystems works best when local communities, Indigenous peoples, scientists and institutions are part of the solution.
Final Words
M. Sanjayan's career is the story of a scientist who refused to keep science inside the laboratory.
He took conservation research into forests, rivers, oceans, deserts and communities.
Then he brought those stories to television.
From Earth: A New Wild to Life at the Waterhole and Changing Planet, his documentaries have shown viewers that the natural world is not an isolated collection of beautiful landscapes.
It is a living system.
People depend on it.
Wildlife depends on it.
Economies depend on it.
And ultimately, human survival depends on it.
His leadership at Conservation International added another dimension to that mission, demonstrating how science, finance, partnerships and conservation can operate together at a global scale.
Perhaps the most important lesson from M. Sanjayan's career is that environmental storytelling should not end with fear.
It should lead to understanding.
Understanding should lead to action.
And action can create hope.
M. Sanjayan has spent his career helping people see that protecting nature is not simply about saving wildlife—it is about protecting the systems that make human life possible.
Thank you for reading this M. Sanjayan Biography.
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