Porpoises exchanged possible distress calls after one became trapped in net

Underwater sensors caught a rare event off Cornwall: one porpoise became trapped in a net while two animals exchanged possible distress calls

Off the coast of Cornwall, a set of underwater sensors was listening to the ocean when it detected something researchers rarely get to see. According to an online report by Phys Org, two harbor porpoises swam around a fishing net, seemingly foraging for food and avoiding the gear, until one got caught up in it.