Geol bb week 7 Essay Example | Topics and Well Written Essays - 250 words

Geol bb week 7 - Essay Example of hunting which characterized by their numerous sharp teeth, and some species like the great white, they have serrated teeth for tearing into flesh (Sexton 6). These teeth are their ultimate weapons which enable them to kill or incapacitate their prey with one bite. Sharks have an extremely well streamline body that enables then to swim very fast when hunting for food. Sharks do not have a swim bladder unlike other fish to them afloat, but they use their fins to accomplish relative buoyancy. Sharks have fins on their body that enable them to maneuver effortlessly at speeds that enable them to hunt for their food effectively. Sharks are solitary animals, and they only encounter one another for mating purposes. Sharks either lay their eggs in protected regions on the seabed or in other species the young ones develop in their mother’s womb until birth when they are born as pups. Shark can live for as long as 100 years, but their average lifespan is 25 to 30 years (Sexton 12). Sharks rarely face any danger in their aquatic environment, but they face danger from human activities. Overfishing poses the greatest danger to the existence of sharks’ in the world’s waters. Regulated harvesting of sharks is the only feasible way to ensure that their future in the world’s oceans is