Sharks and rays have populated the world’s oceans for around 450 million years, but more than a third of the species living today are severely threatened by overfishing and the loss of their habitat. Sharks and rays have populated the world’s oceans for around 450 million years, but more than a third of the species living today are severely threatened by overfishing and the loss of their habitat. Ecology Paleontology & Fossils Phys.org – latest science and technology news stories
Global warming offers mixed blessings for ancient ocean predators, paleobiologists suggest
