Extreme Animal Weapons
Season 44 Episode 19 | 52m 55s
In this enthralling special, NOVA cracks the secret biological code that underlies nature’s battleground.
Expires: 11/22/20Video has closed captioning.
Problems Playing Video?
Hunting down the most venomous animals to reveal their medical mysteries.
Toxic compounds in animal venom could yield new drugs.
Animals that lose a child or companion can exhibit an apparent complex range of emotions.
Meet some of the creative tool-users in the animal kingdom.