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Environment

Most chimp experiments unnecessary, says US panel

Outright ban in US ruled out, but bar raised for justifying experiments on chimpanzees

Environment

Orang-utans digest their own muscles to survive

Environment

Chimp markets reveal evolution of friendship

Earth

Humans killing at least 750 Bornean orang-utans a year

Environment

Baby apes’ arm waving hints at origins of language

Environment

Anthropologist: I slept up a tree to understand chimps

Environment

Bonobo Eden: At home with the peace-and-love apes

Environment

US debates an end to medical research on chimps

Environment

Zoologger: The most athletic ape in the canopy

Environment

Chimp nest architecture has lasting foundations

Although they make a new nest each night, chimps often build them on branches that they have previously shaped into the perfect foundation

Environment

The first advertising campaign for non-human primates

Environment

A stone’s throw from a chimp

Environment

Feedback: Chimp brokers outperform professionals

Environment

Going ape: Ultraviolence and our primate cousins