With such diversity, it's no surprise that sharks serve many ecological functions. For example, the largest individuals of some big predatory species, such as tiger and white sharks, can have an ...

They have the largest brain-weight ratio in cold-blooded fish species, and some populations even form close-knit communities.

Basking sharks are also the biggest sharks that can breach, propelling their huge bodies out of the water, sometimes up to four times in a row. Breaching is still not totally understood ...

Largest Shark: The whale shark (Rhincodon typus ... while probing the uterus of a pregnant sand tiger shark, was bitten by an unborn pup. The strongest shark bite: The greatest force of a shark ...