It was after midnight in Quito when Stella de la Torre came for me, waiting under a streetlamp next to the black minivan that ...

Captive marmosets that listened in on recorded vocal interactions between other monkeys appeared to understand what they overheard - and formed judgements about one of the interlocutors as a result, ...

Naming others is considered a marker of highly advanced cognition in social animals, previously observed only in humans, bottlenose dolphins and African elephants. Marmoset monkeys have now joined ...

Pygmy marmoset cubs are pictured with their mother in their enclosure at the Mulhouse Zoo, eastern France — SEBASTIEN BOZON Naming others is considered a marker of highly advanced cognition in social ...