Episode Details

We used to think that of our primate relatives, chimps were the more aggressive ape and bonobos were more peaceful. A recent study found that bonobos are just as antagonistic as chimps, but it's the females targeting males.

PLUS:

• Mission to deflect an asteroid was a smashing success
• Low gravity environments can lead to stronger blood clots in astronauts
• From fire to galaxy formation, a celebration of friction as a fundamental force
• Winter spiders survive subzero temperatures with a potent antifreeze