Q 01/05

Which animal produces cube-shaped droppings?

A) Wombat

B) Koala

C) Capybara

D) Platypus

Answer · why

A) Wombat

The cubes stack without rolling away, which helps mark territory on uneven ground; the physics of how the gut shapes them won an Ig Nobel Prize in 201...

Q 02/05

How many hearts does an octopus have?

A) One

B) Three

C) Two

D) Five

Answer · why

B) Three

One main heart pumps blood round the body and two smaller ones push it through the gills; the main heart actually stops beating while the animal swims...

Q 03/05

Which animal is considered biologically immortal because it can revert its cells to a juvenile stage?

A) Greenland shark

B) Naked mole-rat

C) Turritopsis dohrnii jellyfish

D) Galapagos tortoise

Answer · why

C) Turritopsis dohrnii jellyfish

It is only about 4.5 mm across; when starved or injured it turns back into a polyp and starts over, though it can still be eaten or fall ill.

Q 04/05

In which animal does the female deposit eggs into the male, who then gives birth?

A) Clownfish

B) Emperor penguin

C) Poison dart frog

D) Seahorse

Answer · why

D) Seahorse

The male carries the developing young in a brood pouch on his front and expels them in contractions that can last hours.

Q 05/05

Which of these is a berry in the strict botanical sense?

A) Banana

B) Strawberry

C) Raspberry

D) Blackberry

Answer · why

A) Banana

Botanically a berry develops from a single ovary with seeds inside the flesh, which also makes tomatoes, grapes and cucumbers berries while raspberrie...