Growing up, we all learn the animal sounds. Cats 'meow', cows 'moo' (so do some mooing dogs), and horses neigh. But what sound exactly do seals make? We don't often think about seal barking, but some ...

Male leopard seals call out for hours on end during the breeding season, using five sounds to compose unique “songs.” Researchers analyzed the underwater vocalizations of male leopard seals in the ...