Shark are dangerous because they are probably the most efficient predators on the Earth. Besides, the human capabilities on water are very limited compared to the abilities of sharks in their natural habitat. Some shark species are aggressive, and the smallest provocation will lead to a violent reaction or attack.

Why sharks are dangerous to humans?

In the wake of NSW's latest shark attack fatality, Macquarie University's Head of Biological Sciences, Professor Nathan Hart, explains why sharks don't naturally hunt humans and how their poor eyesight could be to blame. ... Attacks are extremely rare and people are rarely consumed by sharks.

Why are sharks so aggressive?

Shark attacks may also occur due to territorial reasons or as dominance over another shark species, resulting in an attack. Sharks are equipped with sensory organs called the Ampullae of Lorenzini that detect the electricity generated by muscle movement.