Many species of sharks eat fish, crustaceans, squid, clams or even worms! The diet of each species depends on its habitat, and its body and behavior have evolved to help it succeed.
The whale shark, aka the largest fish in the ocean, eats some of the ocean's smallest animals. Open-ocean crustaceans like krill and copepods are often caught in its gill rakers (Clark & Nelson, 1997; Duffy, 2002). Whale sharks have also been known to target fish and coral spawning events, where they slurp up an innumerable amount of eggs (Norman, 1999; Heyman et al., 2001).
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