If it weren’t for a cheeky monkey named Naruto, who, as the story goes, stole a photographer’s camera in an Indonesian park and snapped a selfie, crested black macaques might still be ...

Of two hunky monkeys, which would you say has the most sex appeal? That’s easier to answer if you’re a rhesus macaque (Macaca mulatta)—or Constance Dubuc, an evolutionary biologist at the ...

PETA asked for an uncensored, unedited livestreamed audiovisual feed of the macaques in the lab of the supervisor of the testing on the monkeys.