Assertion: whale shark's food | /r/CapableOf | become scarce
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Source sentences:
text: In fact these large sharks hunted other smaller sharks, fish, dugongs, sea turtles and large whales as part of their primary/main diet and it is believed that when food became scarce they may have even hunted each other or other young megalodon sharks that were less protected and easier to capture.
text: But, the nail in the coffin for Megalon was its sheer size - when food became scarce it starved, but smaller predators like orcas and great whites would simply reduce in numbers until their population reached an equilibrium with the available food.