Some species display flashy ornaments designed to signal their dominance or attract females. Take the large cheek flanges of orangutans or the oversized noses of proboscis monkeys. But the ornaments ...

Rockhampton Zoo staff watched anxiously as new chimpanzee Sile met her new troop to see if she would be welcomed into the group. In a moment of connection, Sile was embraced by young chimp Gandali ...