Human activity is affecting the planet in dramatic, unsustainable ways -- including destroying the habitats of wild animals. Considering our obligation to care for the creatures we've impacted, environmental writer Emma Marris dives into the ethics of wildlife management, zoos and aquariums, offering her thoughts on how we can help Earth's wildl...

Conservationist and TED Fellow Moreangels Mbizah studied the famous Cecil the lion until he was shot by a trophy hunter in 2015. She wonders how things could've gone differently, asking: "What if the community that lived next to Cecil was involved in protecting him?" In a quick talk, Mbizah shares the state of conservation in her home of Zimbabw...

400 years after Hudson found New York harbor, Eric Sanderson shares how he made a 3D map of Mannahatta's fascinating pre-city ecology of hills, rivers, wildlife -- accurate down to the block -- when Times Square was a wetland and you couldn't get delivery.

Ecologist Lian Pin Koh makes a persuasive case for using drones to protect the world's forests and wildlife. These lightweight autonomous flying vehicles can track animals in their natural habitat, monitor the health of rainforests, even combat crime by detecting poachers via thermal imaging. Added bonus? They're also entirely affordable.

From Shark Week and candy commercials to the iconic film Jaws, it's clear sharks are prominent in our collective imaginations. According to wildlife educator Melissa Cristina Marquez, however, something key is missing in these depictions. In this thought-provoking talk, she speaks about the similarities between female sharks and women in STEM --...

In cities, evolution occurs constantly, as countless plants, animals and insects adapt to human-made habitats in spectacular ways. Evolutionary biologist Menno Schilthuizen calls on peculiar beings such as fast food-loving mice and self-cooling snails to illustrate the ever-transforming wonders of urban wildlife -- and explains how you can obser...

"In the cathedral of the wild, we get to see the best parts of ourselves reflected back to us." Boyd Varty, a wildlife activist, shares stories of animals, humans and their interrelatedness, or "ubuntu" -- defined as, "I am, because of you." And he dedicates the talk to South African leader Nelson Mandela, the human embodiment of that same great...

Let's admit it: aerial photo drones and UAVs are a little creepy, and they come with big regulatory and safety problems. But aerial photos can be a powerful way of telling the truth about the world: the size of a protest, the spread of an oil spill, the wildlife hidden in a delta. Sergei Lupashin demos Fotokite, a nifty new way to see the world ...

For centuries, people have viewed swamps and wetlands as obstacles to avoid. But for photographer Mac Stone, who documents the stories of wildlife in Florida's Everglades, the swamp isn't a hindrance — it's a national treasure. Through his stunning photographs, Stone shines a new light on a neglected, ancient and important wilderness. His messag...

We're losing animal and plant species at such a swift, unprecedented rate that it's nearly impossible to keep up. Computational biologist Tanya Berger-Wolf demonstrates how harnessing the power of artificial intelligence and one of the internet's biggest resources -- public images and video -- supports the crucial collection of data to save thre...

Moreangels Mbizah is the founder of Wildlife Conservation Action, an organization dedicated to conserving biodiversity, promoting human-wildlife coexistence and empowering local communities.

Molly Wright, a student from Queensland, Australia, is a passionate advocate for early childhood development. At just seven years old, she's one of the youngest people ever to give a TED Talk.

Kartick Satyanarayan works tirelessly to save India’s wild animals from illegal captivity and poaching -- most notably rescuing hundreds of “dancing” bears.

Munir Virani is a raptor biologist and wildlife photographer, and Director of the Peregrine Fund Africa Program, devoted to conserving birds of prey.

Brazilian-born biologist Juliana Machado Ferreira wants, simply, to save the world one bird at a time. She is a TED Senior Fellow.

Protecting the natural environment for future generations is one of Prince William's key priorities.

Paul Nicklen photographs the creatures of the Arctic and Antarctic, generating global awareness about wildlife in these isolated and endangered environments.

Karen Bass has traveled the world to explore and capture footage from every environment across the Earth.

Allan Savory works to promote holistic management in the grasslands of the world.

Markus Mutz is creating a new method of supply chain tracking that could dramatically change the way we think about our next meal -- and everything else we consume.

David Baron writes about science in books, magazines, newspapers and for public radio. He formerly served as science correspondent for NPR and science editor for PRI’s The World.

Tanya Berger-Wolf is among the founders of the field of computational ecology, leading research at the unique intersection of computer science, wildlife biology and social sciences.

Melissa Garren is a molecular and marine biologist with a passion for unlocking the mysteries of our ocean's ecosystems and finding new avenues for conservation.

Siegfried Woldhek knows faces -- he's drawn more than 1,100 of them. Using sophisticated image analysis and his own skills as an artist, he's come up with a fascinating discovery about Leonardo Da Vinci.

Working at the intersection of art and science, Nirupa Rao seeks to bring alive the magic of the plant kingdom.

Florida-based photographer Mac Stone specializes in documenting the Everglades, an area he prizes for its wildlife and flora.

Lian Pin Koh expands conservation efforts by championing the use of low-cost autonomous aerial vehicles.

Jason Clay’s ideas are changing the way governments, foundations, researchers and NGOs identify and address risks and opportunities for their work.

These incredible pups catch poachers, sniff out invasive plants and diseases, and more, thanks to the work of wildlife biologist and conservation-dog expert Megan Parker. What happens to those dogs that are just too much dog for people to handle? “You know them -- you go to your friend's barbecue, their dog is so happy to see you that she pees ...

Frans Lanting is one of the greatest nature photographers of our time. His work has been featured in National Geographic, Audubon andTime, as well as numerous award-winning books. Lanting's recent exhibition, The LIFE Project, offers a lyrical interpretation of the history of life on Earth.