The three-dimensional shape of a protein can be used to resolve deep, ancient evolutionary relationships in the tree of life, ...

This makes intuitive sense because common ancestry is the only factor that unites four billion years of life on Earth. This connection between taxonomy ... evolutionary tree are vigorously debated ...

Many new names sounded as if they’d been cooked up by a medieval monk. HIV-1 would henceforth be known as Lentivirus ...

An exchange saY8 the story that the Upas tree sf Java exhales a poisonous aroma ... such as often extinguishes life in this country in old wells and foul places. This deadly atmosphere kills ...