Alexandra Horowitz

Professor of Psychology, Animal Behavior, and Canine Cognition; Bestselling Author of "Inside of a Dog: What Dogs See, Smell and Know"

Michael Shellenberger

Founder & President of Environmental Progress; Expert on Energy, Climate, Security, Human Development and Politics

Danny Trejo

Actor, Author, Activist & Restaurateur; Recovery & Intervention Counselor for Troubled Youth

Joel Sartore

National Geographic Photographer & Author

Paul Rosolie

Conservationist, Writer, Filmmaker, Founder of Junglekeepers, Protecting 55000+ acres of Amazonian Habitat & Wildlife

How creative & emotive communication conserved 55,000 acres of Peru’s Amazon

Steve Winter

Wildlife Photojournalist

Tony Juniper

Writer, Sustainability Advisor, & Environmentalist

Bob Baffert

Legendary Triple Crown-Winning Horse Trainer

Christian Serratos

Actress, Best-known for her Role in the "The Twilight Saga" Series & "The Walking Dead"

Carlton Ward Jr.

Conservation Photographer & National Geographic Explorer; Founder of Florida Wild

Bindi Irwin

Wildlife Conservationist & Daughter of Steve Irwin; Season 21 Contestant on "Dancing With the Stars"

Wade Boggs

National Baseball Hall of Famer, 12-Time MLB All-Star & World Series Champion; Wildlife Conservation Activist

Tiger Darrow

Austin Raised Singer Songwriter; Booker T. Washington High School -Dallas & NYU Graduate

Christiana Figueres

Expert on Global Climate Change; Former Executive Secretary of the UN Framework Convention on Climate Change

Maggie Q

TV & Film Actress, Known for Lead Role in CW's "Nikita"

Lisa Edelstein

Actress, Director, Writer & Producer

Denise Richards

Actress, Former Fashion Model & Reality Star on Bravo's "The Real Housewives of Beverly Hills"

Dennis Dimick

Former Executive Environment Editor at National Geographic Magazine

Hayden Panettiere

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

Portia de Rossi

Actress, Known for"Ally McBeal" & "Arrested Development."