Saber-toothed anchovy relatives hunted in the sea 50 million years ago
Fossils suggest these ancient animals grew up to a meter long and ate other fish

During the Eocene Epoch roughly 50 million years ago, some ancient anchovy relatives were equipped with unusual teeth: spikes paired with a lone, slightly offset sabertooth. One such fish called Monosmilus chureloides is caught in the jaws of an early whale as it chases smaller anchovies in this illustration.
Joschua Knüppe