Proof set and book planned for U.S. Endangered Species issue

Only 4,000 of these proof sets will be produced, according to the Postal Service.

Endangered Species Act

Habitat destruction - Wikipedia

Protecting Endangered Species in the United States

Ocelots once roamed the U.S. Can we bring them back?

DNA Study Reveals the One and Only Wolf Species in North America - The New York Times

It's the world's newest whale species—and it's already endangered

See a different endangered animal in every U.S. state

Endangered Species Forever Stamps Released by USPS to Celebrate 50 Years of the Endangered Species Act - The Southern Maryland Chronicle

Joel Sartore's portraits capture animals that might be extinct in the wild

These 50 animals are in peril. Here's how you can help.

Endangered birds experience 'virgin birth,' a first for the species

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Most U.S. wolves are listed as endangered—again. Here's why.

Buy Woody’s Last Laugh: How the Extinct Ivory-billed Woodpecker Fools Us into Making 53 Thinking Errors on ✓ FREE SHIPPING on qualified

Woody's Last Laugh: How the Extinct Ivory-billed Woodpecker Fools Us into Making 53 Thinking Errors

Tenacious Beasts: Wildlife Recoveries That Change How We Think about Animals - Kindle edition by Preston, Christopher J.. Download it once and read it

Tenacious Beasts: Wildlife Recoveries That Change How We Think about Animals See more