Tundi Agardy

Marine Conservationist & Founder of "Sound Seas," Research and Policy Project to Help Protect the Oceans and Ocean Life

Helen Scales

British marine biologist, broadcaster, and writer

Denise Herzing

Research Director & Founder of the Wild Dolphin Project; Author of "Dolphin Diaries"

Rhian Waller

Associate Professor at University of Maine; Deep-Sea Ecologist

Michael Archer

Paleontologist Michael Archer is working to bring back his favorite extinct animal: the Tasmanian tiger.

Dr. Hendrik Poinar

Evolutionary Biologist Specializing in Ancient DNA

Zeb Hogan

Ecologist/ Photographer

Paul Nicklen

Renowned Wildlife Photographer & Conservationist

Dyan deNapoli

Penguin Expert, TED Speaker & Award-Winning Author of "The Great Penguin Rescue"

Dr. Tierney Thys

Marine Biologist, Educator & Filmmaker

Paul Snelgrove

Paul Snelgrove led the group that pulled together the findings of the Census of Marine Life -- synthesizing 10 years and 540 expeditions into a book of wonders.

Daniel Pauly

Daniel Pauly is the principal investigator at the Sea Around Us Project, which studies the impact of the world's fisheries on marine ecosystems. The software he's helped develop is used around the world to model and track the ocean.

Dr. Adam Summers

Associate Director of University of Washington's Friday Harbor Laboratories, Biomechanic

Douglas McCauley

Professor of Marine Biology, UC Santa Barbara; Director Benioff Ocean Initiative

Hayden Panettiere

Actress Known for "Nashville" & "Heroes" & Animal Rights Activist

Sly Lee

Founder and President of The Hydrous

Lauren Sallan

Paleobiologist & TED Senior Fellow at University of Pennsylvania

Why are fish fish-shaped? - Lauren Sallan

Roger Hanlon

Marine Biologist & Expert on Camouflaged Deep-Sea Creatures

Stephen Palumbi

Author of "The Death & Life of Monterey Bay", ane and Marshall Steel Jr. Professor in Marine Sciences at Stanford University and the Harold A. Miller Director of the Hopkins Marine Station

The Origin of Life: Evolution vs. Design [Full Debate] - YouTube

Jessica Meir

NASA Astronaut, Marine Biologist & Physiologist; One of the First Women to Participate in An All-Female Spacewalk

Journey to NASA with Astronaut Jessica Meir