Add Yahoo as a preferred source to see more of our stories on Google. Common seal known also as Harbour seal, Hair seal or Spotted seal (Phoca vitulina) pup lying on the beach. Helgoland, Germany© ...

Millions of years ago, all mammals lived on land, but at some point, several species left land and evolved to a life in the sea: think of seals and whales, which today are adapted to life under water.

An aquarium seal does not believe his eyes in this viral Instagram video, which has generated millions of views and likes. In this clip, this seal looks back and forth from the face of one human twin ...