My guess: Phthalates or other man-made endocrine disruptors accumulating in the environment and giving male monkeys psychological pregnancy.
treetalker•3h ago
Or it could be an innate primate behavior. While not distinct species per se, consider Russia's kidnapping Ukrainian children.
elmerfud•3h ago
You wouldn't even have to use a strange example like that. Consider how nearly every culture on the planet considers it normal to kidnap puppies and kittens.
Qem•4h ago
treetalker•3h ago
elmerfud•3h ago