History of intestinal vermin began previous to the era of dinosaurs

The feces of shark that lived 270 million years ago, suggests that parasites assailed animals much earlier than previously thought. Tapeworms are clinging to the inner walls of the intestine of vertebrates, and reaching the age of maturity, lay eggs which are released to the outside world with waste master. The study of the early… Read more History of intestinal vermin began previous to the era of dinosaurs