You may know a ton of fun facts about animals, but we bet you haven't heard these jaw-dropping truths Are you up on your fun facts about animals? For every extraordinary creature on the planet, there ...

Echidnas don't have very good vision, but they have a strong sense of smell and hearing. When they feel threatened, echidnas will roll into a ball so that only their spiky back is exposed. Echidnas ...

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There are literally countless examples of strange animal facts. For instance, the beluga whale is often referred to as the "sea canary" because of the birdlike chirping sounds it makes.

From critter-killing copulation to beautiful “bladder songs,” here are some of the strangest facts about sex in the animal kingdom.