17:15
The fascinating intelligence of birds | Auguste von Bayern | TEDxTUM
16:16
What can we learn from ghost stories? | Amy Tudor | TEDxVCU
10:09
Ravens and the evolution of intelligence | Jorg Massen | TEDxArnhem
13:48
5 reasons you look bad in photos | Teri Hofford | TEDxWinnipeg
12:35