This week on the show Claire uncovers what is really going on with those felshy melon shaped protrusions on the side of male orangutans faces, and why do only some males have 'em? 

Manisha talks about new research into how climate change caused dwarfism in mammals based on data and fossil records from over 50 million years ago.

And a truly cerebral moment as Chris goes head to head with science comedian Alanta Colley sparring grey matter facts, it's Brain Science 101 on your radio.