Drill Holes in Shells Point to Big Predators Picking off Small Prey (image)

Florida Museum of Natural History

Caption

The hole in this Glycymeris americana, or American bittersweet, testifies to the mollusk's grisly end as a meal for a drilling predator. Drill holes provide a record of increasingly bigger predators feeding on small prey.

Credit

Florida Museum of Natural History photo by Kristen Grace

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