Babies conceived via assisted reproductive technology, such as in vitro fertilization, have a 36% higher risk of developing a major heart defect than children conceived naturally, a new study finds.

A small team of archaeologists, geologists, paleontologists and climate scientists has found that at least one type of plesiosaur had scales on its flippers similar to modern sea turtle species ...

The 183-million-year-old, 4.5-metre-long plesiosaur fossil, known as MH7, was first excavated from a quarry near Holzmaden, Germany, in 1940 but it was buried in a museum garden to protect it ...

Mr. Marx and colleagues analyzed three soft-tissue skin samples, each about the size of a fingernail, from a flipper and the tail of a 183 million-year-old long-necked plesiosaur specimen.