Their are 2 heart chambers.
4 chambers
No, not all animals have the same number of chambers as humans.
2 chambers
Clams have the most complex heart of the mollusks, with 3 chambers.
The dog's circulatory system is quite similar to that of humans. The heart has four chambers. The two upper chambers are the left and right atria, while the stronger, lower chambers are the right and left ventricles.
Sharks have 2 chambers
A snails heart has 2 chambers.
some only have three chambers
the 2 lower chambers of the heart
The left atrium and right atrium receive blood coming into the heart.
some only have three chambers