Save Our Texas Treasures Factsheet

Named for its rolling hills, the Hill Country’s landscape is shaped by aquifers and springs that channel groundwater. These essential waters are home to several

Shark identification guide for South America - Atlantic

Shark identification guide including fins, for the region of the Atlantic in South America.

Shark identification guide for South America - Pacific

Shark identification guide including fins, for the region of the Pacific in South America.

Shark Identification Guide for Mexico, Central America and the Pacific

Shark identification guide including fins, for the region of Mexico, Central America and the Pacific.

Dunes Sagebrush Lizard - The Cautionary Tale of a Candidate Species Denied

This white paper explains the problems with the U.S. Fish & Wildlife Service's recent decision to not list the dunes sagebrush lizard and recommends improvements

Wolverine ID Card

Use this ID card to learn how to identify wolverines and the tracks they leave behind.

Shark Identification Guide for Mexico and the Caribbean

Shark identification guide for 38 species in the region of Mexico, Central America and the Caribbean.

Defenders of Wildlife ESA Policy White Paper Series: Improving the Effectiveness and Efficiency of the Endangered Species Act

This white paper is the first in a series laying out Defenders of Wildlife’s vision for improving implementation of the Endangered Species Act (ESA). The

La Marea Esta Cambiando Tiburones: de Amos de los Oceanos, a Especies en Peligro de Extincion

Los tiburones han recorrido las mares desde hace cientos de millones de años. Perfectos depredadores que se encuentran por encima de la cadena alimenticia, los

From Rulers of the Seas to Endangered Species

Sharks have roamed the seas for hundreds of millions of years. Perfect predators at the top of the food chain, sharks had few enemies until
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