A small alligator lizard opens its mouth in a threat as it basks on a tree stump on a sunny hillside near Elkton in rural western Oregon. Alligator lizards are known for their fierce attitudes. They are carnivorous and primarily feed on small invertebrates (slugs, spiders, centipedes, scorpions, beetles, grasshoppers, and crickets), but also are known to feed on bird eggs, nestlings, other lizards, and small mammals. (Robin Loznak/ZUMAPRESS.com)