Scientists have traced the evolution of the four-chambered human heart to a common genetic factor linked to the development of hearts in turtles and other reptiles. The research shows how a specific ...

Sept 15 (Reuters) - Scientists in Australia have unearthed beautifully preserved fossilized hearts and other internal organs of ancient armored fish in a discovery that provides insight into the ...

Why is a newborn mouse like a zebrafish? Because their hearts can heal – something impossible for adult mammals. The findings could lead to new treatments for heart disease in people. Some fish and ...