5
They have 5 hearts. =)
Earthworm.
5
dom't no stupid
I think the animal that has 4 hearts is a earthworm, because in my science class i dissected a earthworm, i saw 4 different parts of tiny black hearts as my teacher said they were, so yes i am learning in 7th grade but i did learn a lot about the earthworm including the hearts. so that proves that the animal that has 4 hearts is.... the earthworms.
The earthworm has five pairs of hearts, which would make a total of ten.
Earthworm
they have have no heart just 5 simillar structures
5. It has five hearts
An earthworm, Annelida [= ringed] has up to five pairs of hearts.
Earthworms have approximately 7 or 8 hearts, i think 7.
It has 3 different hearts. so in other words you could cut the earthworm in half and it could still be living. The earthworms spread out and have other babys. The earthworm has both male, and female sex organs.