This 2-foot-long, black-masked member of the weasel family once occurred in central grasslands and basins from southern Canada to Texas but is now one of the most endangered mammals in North America.

Like polar bears on the opposite pole, emperor penguins endure unfathomable hardships to breed and nurture each new generation — fasting for months through the planet's harshest winter. If their ...

Just as nature inspires art, art inspires actions to defend wild places and the wild creatures that live in them. With this in mind, the Center for Biological Diversity's Endangered Species Mural ...

The honeybee comes immediately to most people's minds when they hear the word "bee." However, the honeybee's life cycle, capacity to make honey, and extreme degree of sociality and accompanying ...

The plight of the Quino checkerspot butterfly has been described by a biologist as “four engines out and about 10 seconds to impact.” The Quino checkerspot was once one of the most common butterflies ...

DESCRIPTION: The northern spotted owl is a medium-sized, dark brown owl with a barred tail; white spots on its head, neck, and back; and dark brown eyes surrounded by a large, heart-shaped facial disk ...

Three vital provisions give the Act its teeth. It’s “citizen-suit” provision lets public-interest groups and individuals petition and sue sluggish federal agencies to make sure the Act protects ...

Bluefin tuna are an ocean-going fish that grow up to 10 feet long and can weigh as much as 1,200 pounds. Unlike almost all fish, bluefin tuna are warm-blooded and able to regulate their body ...

When a Chiricahua leopard frog wants attention, it snores — at least, its distinctive call sounds like a snore. But the sound of snoring around desert streams, springs and even stock tanks is a lot ...

Our planet now faces a global extinction crisis never witnessed by humankind. Scientists predict that more than 1 million species are on track for extinction in the coming decades. But there’s still ...

A broken coastal oil pipeline near Santa Barbara spewed tens of thousands of gallons of oil into the Pacific Ocean in 2015. Plain All American Pipeline, the operator that was found criminally liable ...

Climate change is the single greatest threat we've ever faced — not only to human society but to the Earth's web of life. The Center's Climate Law Institute was founded to unite our programs in ...