The male seahorse carries babies and 'gives birth' to them instead of the female.
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The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
The colossal squid has the largest eyes in the world.
4