How many hearts does an octopus have?
An octopus has three hearts: two pump blood through the gills and one pumps it to the rest of the body.
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- What do seahorses use their tails for?
“Seahorses use their tails to grab onto seagrass and coral.”
Reference: Smithsonian Ocean
More from this shelf
Which parent gives birth to baby seahorses?
Male seahorses give birth. The female deposits eggs into the male's pouch, and he carries them until they hatch.
What is an "otter tail"?
The Labrador Retriever has a thick, rounded, tapering "otter tail" that works like a rudder, helping the dog steer while it swims.