Every year, all over Europe, many orphaned grey and harbour seal pups need rescuing and hand-rearing, and then they're returned to the world.

每年在整个欧洲，许多孤儿灰海豹和海港海豹幼崽需要救援和人工饲养，然后被送回大自然。

The latter ambushed harbour seals, sea lions and the occasional otter, while the former tended to perform co-ordinated dives in their hunt for larger mammalian prey.

后者伏击斑海豹、海狮，偶尔还会有水獭，而前者则倾向于团队配合，捕猎更大的哺乳动物。

It's easy to see the differences between the skulls of a living wolf, a mountain lion, and a harbour seal.

很容易看出活狼、山狮和斑海豹的头骨之间的差异。