Rainer Schimpf, 51, was diving off the coast of South Africa with a documentary crew in February when the breaching whale reached the surface, its mouth wide open.

The blue whale is so large, it dwarfs a pod of dolphins swimming in front of it. The dolphins quickly scatter as the whale opens its huge mouth and ... up to krill and open their large mouths ...

The whale, believed to have weighed 50 tonnes, opened its mouth to eat krill right in front of excited spectators. Produced by Claudia Romeo More from UK Tourists in Quebec got an almighty ...

The same is true for the enormous mouths of whales ... its mouth, it must tear itself apart. Hydra viridissima. Frank Fox CC BY-SA 3.0 In the 1970s, scientists saw that hydras can open their ...

A photograph by a whale-watching naturalist captured a seemingly bewildered seal in the mouth of a humpback whale after the giant marine mammal accidentally gulped it last Thursday in the waters ...