And just when scientists think they at least know what animals in the deep are the biggest, a tracker affixed to a female ...

So in order to replace that energy they need to eat a lot of food. To ensure a meal, the Mako shark implements certain tactics when hunting. It will often attack and bite off the tail of its prey ...

This is a photograph of shortfin mako shark scales which each measure about 0.2 millimeters in length. The front row of scales has been manually bristled to their maximum angle of about 50 degrees ...

How fast can a shark swim? The fastest shark species is the shortfin mako shark, and it's believed that they can go at least 31 miles an hour - possibly even faster than that. In lots of different ...