The blue shark is an animal personifying the idea of streamline beauty. This shark is not particularily big but differentiates itself from others by being a remarcable swimmer. It can swim at speeds up to 40 kph! It typically prefers cooler waters.
An unfortunate reality of being so small in the natural world is that sometimes, predator will become prey. In this piscture, you see a seal, a known prey for sharks making a meal out of a blue shark.
Informations found on this page can be found at:https://www.thoughtco.com/how-fast-can-a-shark-swim-2291556 and https://en.wikipedia.org/wiki/Blue_shark