Nature does not need exaggerating. Every answer below sounds invented, and every one is real.
How many hearts does an octopus have?
Three — two pump blood to the gills, one to the body.
Which animal's fingerprints are nearly indistinguishable from a human's?
The koala — they've theoretically confounded crime scenes.
What is the only mammal capable of true flight?
The bat.
Which animal can be considered biologically immortal?
The jellyfish Turritopsis dohrnii — it can revert to its juvenile stage.
What is the loudest animal for its size?
The snapping shrimp — its claw snap hits around 200 decibels underwater.
What color is an octopus's blood?
Blue — it uses copper-based hemocyanin instead of iron-based hemoglobin.
Which bird can fly backwards?
The hummingbird.
How long can a Galápagos tortoise live?
Well over 100 years — some individuals have passed 170.
What is a group of flamingos called?
A flamboyance.
Which land animal has the largest eyes?
The ostrich — each eye is bigger than its brain.
What do you call a group of crows?
A murder.
Which animal sleeps standing up and can lock its legs to do it?
The horse.
What is the fastest land animal?
The cheetah — bursts around 60–70 mph.
Which mammal lays eggs?
The platypus and the echidna — the world's only monotremes.
How do sea otters keep from drifting apart while sleeping?
They hold hands — and wrap themselves in kelp.
Yes, the sea otter one is real, and yes, it is now your phone background waiting to happen.
