Whiskers

The front part of the seal’s face, including the nose, is called the snout. Seals have long whiskers on their snouts. Whiskers are long stiff hairs that are used as feelers. The whiskers help seals hunt in very dark water. They can 'feel' their prey when the water moves as the prey tries to swim away.

The word prey is used to describe all the animals that are hunted by a predator.