Great white shark

The great white shark is a powerful, gray-backed predator with a white belly, roaming cool and warm oceans worldwide. It's one of the bigger sharks, though not the biggest, and its body is built for speed and strength. What makes it special? It keeps its teeth sharp by constantly growing new ones—about 300 at a time.

• Its liver makes up over a quarter of its body weight, helping it float and store energy.
• Unlike most fish, it's partly warm-blooded, letting it hunt in chilly waters.
• Its triangular teeth have jagged edges like steak knives, perfect for slicing prey.