Female bonobos send one of the most confusing signals in the primate world: a bright pink genital swelling that stays fully inflated long before - and long after - they're actually fertile. It looks ...

Male bonobos can decipher females’ unreliable fertility signals, allowing them to focus their efforts on matings with the highest chance of conception, according to a study by Heungjin Ryu at Kyoto ...

When a male bonobo oversteps his bounds — say, by hopping into a tree and shaking the branches while others are trying to feed — females in the troop tend to act fast. They kick him, they chase him, ...