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Extinct Species

Fossils Zoology Paleontology Evolutionary Biology Ecosystems Animal Physiology Ecology Jurassic Period Animal Behavior Kangaroos

Landmark Study Chronicles 35-Million-Year Evolution and Extinction of Sloths

New research links climate shifts, habitat changes, and human activity to sloth size evolution and extinction patterns.

Giant Kangaroos' Small Home Ranges and Limited Mobility Linked to Extinction

Early Mammals Had Uniform Dark Coats, Study Finds