It was speculated that some dinosaurs may have had two hearts to help pump their blood around. Earth worms supposedly have six hearts.
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
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NONe there is no two heart animal ........ DNG AKA DeathNoteGal
worns has 3 hearts an also lays eggs
Chickens just like most any other animal have only 1 heart.
octupus have 3 hearts
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
Fish are the animal group that have two-chambered hearts. Reptiles and amphibians have three-chambered hearts and mammals have four-chambered hearts.
♥
NONe there is no two heart animal ........ DNG AKA DeathNoteGal
Earthworm.
MAN
The earthworm has five pairs of hearts, which would make a total of ten.
worns has 3 hearts an also lays eggs
No animal has 8 hearts but some earthworms have 5 hearts