A capuchin named Joker started the apparent trend, leading researchers to suspect "there was something a little quirky about him, or that he was kind of lonely in a way.” ...

The scientists nicknamed one capuchin kidnapper Joker because the scar at the side of its mouth reminded them of the "Batman" ...

Plus, researchers could hear adult howler monkeys calling back and forth with the infants, who would sometimes try to crawl away. Camera footage showed one occasion when an adult howler came and tried ...

The footage showed the capuchins walking and pounding their stone tools with baby howlers on their backs. But cameras did not ...

Quebec animator Felix Dufour-Laperrière tells THR about the making and meaning of his fantasy pic about a failed terrorist ...