Natural History

Big Bend is famous for its natural resources and spectacular geology. The park's varied array of habitats support more than 1,200 species of plants (including some 60 cacti species), 11 species of amphibians, 56 species of reptiles, 40 species of fish, 75 species of mammals, over 400 species of birds, and about 3,600 species of insects. The park boasts more types of birds, bats, butterflies, ants, scorpions, and cacti than any other national park in the United States.

From 500-million year old rocks at Persimmon Gap to modern-day windblown sand dunes at Boquillas Canyon, Big Bend preserves tremendous geological diversity. Marine sedimentary rocks, continental sedimentary rocks, volcanic rocks, and evidence of the three great North American mountain-building episodes are found within the park boundaries.

 

Natural History of Big Bend

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  Ecosystems

  The mountains, river and desert of Big Bend create an incredibly diverse landscape.

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  Water

  Water defines the desert.

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  Wildlife

  Big Bend is one of the most biologically diverse arid regions in the world.

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  Plants

  Over 1,200 species of plants are found within Big Bend National Park.

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  Rocks

  Big Bend is a geologist's paradise.

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  Fossils

  130 million years of life are preserved in the rocks of Big Bend.