The species holding the No. 1 spot is the coastal redwood. Coastal redwoods usually grow to be between 300 and 350 feet, according to the National Park Service. The largest of the coast Douglas firs ...

Even species as enduring as coast redwoods are affected by climate change. Diminished moisture stresses the trees, making them grow with less vigor. New fire dangers put them at risk, and more ...

This species was thought to be extinct and known only by fossils until 1944 when a small grove of them was discovered in China. Sometimes called the Chinese redwood, this tree often gets to be 50 ...

In 1974 at California's Big Basin Redwood State Park, the marbled murrelet — the “enigma of the Pacific” — won the distinction of being the last bird species in the United States to have its nesting ...

It is home to one of the last protected stands of accessible old-growth redwood trees in the world. The park has essential habitat for protected species, and its creeks support runs of imperiled ...