Insects have no kidneys.
all animals have hearts
Bacteria have no heart
jellyfish
mainly animals that have gills
No they dont
I think its the hummingbird
No, not all animals have the same number of chambers as humans.
Jeremy Rifkin, author of the article A Change of Heart About Animals, is the President of TIR Consulting Group LLC. He has written over 20 books.
No.
no because animals are the same with human and animals don't have life/spirit.
mainly animals that have gills
Heart
It is considered that because the human heart is stronger and will last longer than other animals.
The heart of vertebrates is made of cardiac muscle.
Fish
All animals have hearts.
yes they can
In animals life
No they dont
Humans!