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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- How long are manta rays pregnant?
“Manta rays are pregnant for about a year and usually give birth to one pup.”
Reference: Manta Trust
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Which fish has the largest brain for its body size?
Manta rays have one of the largest brain-to-body ratios of any fish.
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.