By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
The reindeer is the only mammal that can see UV light.
17
A puppy is born blind, deaf, and toothless.
16
There's a rare breed of pig that looks like a sheep.
14
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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