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1:06 Etymology
OK started as a joke
0:51 Evolutionary biology
Goosebumps Are Left Over from Fur
0:50 Geochemistry
Why the Sea Is Salty but Rivers Are Not
0:55 Ornithology
Why Geese Fly in a V
0:51 Biochemistry
Why Onions Make You Cry
1:09 Agriculture
Every banana you buy is a clone
0:49 Anthropology
Can You Really Keep Up With 150 People?
0:45 Celestial mechanics