Some ribbon worms will eat themselves if they can't find any food.
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Greyhounds have the best eyesight of any breed of dog.
28
7,000 new insect species are discovered every year.
30
A kangaroo cannot jump if its tail is off the ground.
29
The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
8