Number 8. Megamouth Shark
Megamouth sharks are considered so rare that as of 2015, only 60 megamouth sharks have been spotted. Known for their abnormally large oral cavity, these sharks can easily reach up to 18 feet in length.
Number 7. Great Hammerhead
Reaching a whooping 20 feet, weighing up to 600 kgs and equipped with razor sharp teeth, there is no doubt that the great hammerhead could easily inflict injuries on humans, even though actual encounters are rare.