21. Cool Koalas and Elephant Calls (2019)

Believe it or not Koalas keep cool by hugging trees. Elephants can communicate over vast distances using Infrasound. A frog tongue is both spring loaded and sticky, so bugs beware. Vultures are immune to bacteria due to their stomach acid, and a trapdoor spider can live for 43 years.

Release date: 2019-05-02