Swimming through the ocean are sharks that look as if they have a hedge trimmer fixed to their heads and a dangling moustache part way along it. These are sawsharks and they use their formidable headgear to slash through shoals of fish. The moustache is a sensory device that helps the sharks detect prey.
“Sawsharks are something extraordinary,” says Simon Weigmann from the Elasmobranch Research Laboratory in Hamburg, Germany.
