Quirks & Quarks·LISTEN

Quirks & Quarks for Dec. 13, 2014

This week, we have a drink with the apes; get a 4500-year-old diagnosis; meet triceratops' tiny grandfather; explore the polar bear's foot fetish; face the electric eel's taser; and climb the Avian family tree.
Aquilops had a beak and small curved horns. ( Illustration by Brian Engh)