Olie Hunter Smart - Adventure Explorer - Amazon River National Geographic Scientists - Tarangire National Park - Tanzania Tierney Thys - Marine Biologist - California Nikkey Dawn - National Geographic Photographer - Canada Mike Gil - Marine Biologist - California Aaron Yazzie - JPL Engineer - California Dr. Ellen Stofan - Director Smithsonian Air and Space Museum - Washington DC Dr. Abby Fraeman - JPL Mars Planetary Scientist - California Dr. Adam Sirek - CSA Astronaut Candidate - Canada Emily Calandrelli - MIT Science Communicator/TV Host - Massachusetts Dr. Erica Caden - Particle Physicist - SNOLAB Clean Room - Canada Lee Berger & Marina Elliott - Paleoanthropologists - Perot Museum - Texas Ornithologists - Lucky Peak Research Station - Idaho Zach Rago - Emmy Award Winning Film Maker - Colorado Dr. Daniel Wagner - NOAA Marine Ecologist - West Virginia Marine Biologists - Toronto Aquarium - Canada Ornithologists - Audubon Nature Center - Wisconsin JJ Marlow - MIT Microbiologist - Massachusetts Popi Borboroglu - Marine Biologist - Isla Pinguina - Patagonia Nilanga Jayasinghe - WWF Senior Officer - Washington DC Callie Broaddus - Nat Geo Kids Art Director - Washington DC Peter Houlihan - National Geographic Photographer - Colombia
