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 decides whether a baby sea turtle is male or female?
“The temperature of the sand decides whether baby sea turtles hatch male or female. Warmer nests produce more females.”
Reference: NOAA Fisheries
More from this shelf
How many species of sea turtles are there?
There are seven species of sea turtles.
How long is an elephant pregnancy?
Elephants have the longest pregnancy of any land mammal, about 22 months, so a mother elephant is pregnant for almost two years.