Orcas: big dolphins, or little whales? You decide! (scientists have already decided). This week, Nirav and Annie dive into the ocean, but not too deep, to swim with one of nature's most majestic creatures - the noble orca. And yeah, we address Shamu. This one's for all you Shamuheads out there.

Animal Genius World is hosted by Nirav Gandhi (M.S. in Environmental Sciences) and Annie Johnson (B.S. in Marine Biology) who definitely remember everything they learned in school. Tune in for every other week for a new episode on your favorite podcatcher!