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Shark Food Habits: Shark Size vs. Prey Selection

The Port Jackson shark has two types of teeth in the jaws that are adapted for grasping and crushing the hard-shelled invertebrates on which it feeds. Photo by Scott W. Michael

<> Did you know that the diet and tooth shape of the white shark changes as it grows? Did you know that larger cownose rays are better diggers than the juveniles are?

In this portion of Coral Realm's survery of shark and ray food habits we examine how the size of a shark or ray determines, in part, what it eats. We look specifically at the changes in the diet of the white shark, tiger shark, lesser-spotted catshark, and the sicklefin devil ray as they grow. We also compare the diets of several requiem sharks that attain different sizes. (This article includes two enlargable photographs.)

Dive in and learn more about the food habits of this fascinating group of fishes!

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