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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- Can sea turtles hide in their shells?
“Sea turtles can't pull their heads and flippers into their shells like land turtles can.”
Reference: NOAA Fisheries
More from this shelf
How many species of sea turtles are there?
There are seven species of sea turtles.
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.