Sharks have been around for about 450 million years, but haven't need to evolve much over the past 208 million years.
Why? Because they are the perfect predators. Find out why.
Infographic: Super Sharks - what makes sharks super predators
Sharks have been around for about 450 million years, but haven't need to evolve much over the past 208 million years.
Why? Because they are the perfect predators. Find out why.
