Proboscis Monkey
Weirdness 8/10

The monkey with a giant drooping nose that works like a megaphone

This monkey grows a huge drooping nose that works like a built-in megaphone.

📋 Fact File
🐾 Mammal🍽️ Herbivore (leaves, seeds and unripe fruit)
📏 Size
About 61-76 cm (24-30 in) from head to body, plus a long tail
Body about as long as a baseball bat
Lifespan
Up to about 23 years (in zoos)
🟠 EndangeredBorneo's riverside forests and mangroves are being cleared, and proboscis monkey numbers keep falling.
🤔 Guess first

Which one is REALLY true about the Proboscis Monkey?

The short version

The proboscis monkey of Borneo grows a huge pendulous nose up to seven inches long, which amplifies its honking calls to impress females. Its enormous potbelly holds a chambered, cow-like stomach full of leaf-fermenting bacteria — so specialized that ripe fruit can make it dangerously ill. It's also a superb swimmer with webbed feet.

Why it's so weird

  • The Proboscis Monkey grows a huge drooping nose that can reach seven inches long on a full-grown male.
  • The Proboscis Monkey uses that nose like a megaphone, amplifying his honking calls so they carry across the forest and impress the females.
  • The Proboscis Monkey carries an enormous potbelly, because its stomach is chambered like a cow's and full of bacteria that ferment tough leaves.
  • The Proboscis Monkey has a gut so specialised that ripe fruit can actually make it dangerously ill.
  • The Proboscis Monkey is a superb swimmer with webbed feet, despite all that bulk.
📏 How big is it, really?
Proboscis Monkey
70 cm
Proboscis Monkey
a 7-year-old
1.2 m
🧒

You could line up about 2 of them along a 7-year-old!