Vilnius University

It's been accepted that the life cycle of an ancient aquatic relative – an extinct group of crocodile-like predators – echoed that of modern amphibians, complete with a tadpole phase. A new study throws that picture into doubt.

Reducing our intake of a single amino acid called methionine, which we get from the food we eat, could help protect against disease and promote healthy aging. Now, scientists have a better method for studying the effects of this critical compound.