Animals, from worms and sponges to jellyfish and whales, contain anywhere from a few thousand to tens of trillions of nearly genetically identical cells. Depending on the organism, these cells arrange ...

American Music Theatre hosted Wild World of Animals with Grant Kemmerer & Friends on Sunday. The show featured about 13 animals ranging from reptiles and birds to mammals. The diverse lineup follows ...

A heart attack will leave a permanent scar on a human heart, yet other animals, including some fish and amphibians, can clear cardiac scar tissue and regrow damaged muscle as adults. Scientists have ...