Earth is a Primate planet, thanks primarily to the 7.3 billion humans who inhabit and reshape its surface.
But behind this conspicuous sea of people, the story of Earth's roughly 700 other primate species and subspecies is a lot less triumphant.
More than half of those primates are now in serious danger of becoming extinct, warns a report by the world's top primatologists and conservationists.
Our closest living relatives are being wiped out by large-scale habitat destruction —
especially from the burning and clearing of tropical forests — as well as by hunting for food and for the illegal wildlife trade.
That's according to the latest list of Earth's 25 most endangered primates,
which is updated every two years by scientists from the International Union for the Conservation of Nature (IUCN),
the Bristol Zoological Society (BZS), the International Primatological Society (IPS) and Conservation International (CI).