Tag: foodchain

  • Sharks, why are they important?

    Sharks, why are they important?

    The shark is for 425 to 455 million years on this planet. That’s a lot longer than us, as the humans. Everybody knows some shark species like the white shark, hammerhead shark, blue shark and the tiger shark, but there are more than 400 shark species. The sharks are part of the group of the cartilaginous skeletons.…