Dolphin researcher, author, and voice actor Justin Gregg drops by The Wild Life! He and Jason talk about whether animals have emotions and personalities, what it's like to be a dolphin researcher, and what happens when cultural traditions come into conflict with animal welfare and conservation. Follow Justin on twitter: @justindgregg.

Jason sits down with science writer Melissa Cronin to chat about gibbon songs and penguin poop. In this wide-ranging conversation they share tales of interacting with readers online, discuss their complex emotions regarding killer whales in captivity, and more. Formerly of The Dodo, Melissa is now producing a web series about our planet called "Down to Earth." Follow Melissa on twitter: @melissa_cronin.

Actress Christina Ochoa stops by to chat with Jason about scientific diving, keeping snakes as pets (she's got a ball python named Riker!), and balancing her passions for both acting and science. Bonus: hear about the time that Christina got lost while hiking in the mountains near LA. Follow Christina on Twitter: @christina_ochoa.