If you’ve always felt like a badass but have never been sure why, new research may help explain. An analysis, to be published tomorrow in Nature, indicates that human beings’ first ancestors were not regular fish but a primitive species of shark. The study points specifically to a spiny swimmer known as Acanthodes bronni, which these scientists now believe is linked to every jawed vertebrate on Earth.
The pre-mankind variety of shark, of course, was only a foot long, had no teeth and fed on plankton — making it fall slightly short of the “Jaws“-style menace we know today — but still. Sharks in our lineage! Deh dun deh dun deh dun deh dun.