Jumping fleas can accelerate 50 times faster than the space shuttle.
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Cats recognise the voice of their owner, but never evolved to care.
22
The colossal squid has the largest eyes in the world.
4
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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