Environment
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Why Are Sharks Getting Bigger?

Great white sharks are fearsome at any size, but what about great whites that are reaching monstrous lengths of 20 feet? Or tiger sharks – the ever-hungry "dustbins of the sea" – that are growing a third larger than their usual size?
A new National Geographic Wild documentary attributes the increase in "megasharks" to "no-fishing zones," which are intended to protect marine creatures from the onslaught of the fishing industry. However, with an increasingly plentiful supply of prey, researchers are observing sharks in the Pacific Ocean growing to record lengths. And more countries are implementing shark sanctuaries to save these apex predators – some of which are close to extinction – from being hunted.
Super sharks:
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