TWS member Jim Heffelfinger has won two awards commemorating a career of wildlife research and conservation. Heffelfinger, wildlife science coordinator with the Arizona Game and Fish Department, won The Dallas Safari Club’s (DSC) 2023 Conservation …
The kit fox population living in the high elevation grasslands of the Trans-Pecos region of western Texas appears to be doing well. Texas Parks and Wildlife had noticed a decline in the distribution of swift …
The wild montane regions of Mongolia are home to a diverse group of mammals, including ibex, one of the largest marmot species on the planet, furry Pallas’s cats and corsac foxes. But some of these …
Black bear populations in the southwestern U.S. and northern Mexico can be divided into several genetically distinct groups that haven’t mixed much for thousands of years. New research reveals that broad-scale climate variation since the …
In 1986, the Kesterson Reservoir in central California was closed due to selenium toxicity. Young waterbirds and fish had developed deformed wings, beaks, and eyes. The reservoir was protected within the San Luis National Wildlife …
Diamondback terrapin populations are shrinking in New York City’s Jamaica Bay, and degraded marsh conditions may be the cause. These large, long-lived turtles aren’t listed federally under the Endangered Species Act, but they are declining …
A common pesticide could change physiology and behavior of blue crabs when waterways carry it down to coastal estuaries, which can have larger effects on the ecosystem. Fipronil is used to treat houses for termites, …
Native bees are declining across the U.S. due to factors like pesticide use, habitat loss and climate change. But little is known about the habitat needs and plant preferences of more than 4,000 native bee …
Surveys in Sonora, Mexico have found high mammal diversity along waterways, including some washes that lead toward the border into the United States. Field conservationists with Cuenca Los Ojos, a partner with the Phoenix Zoo, …
An analysis of liver tissue samples from dead California condors reveals that a large portion of the giant raptors have consumed carcasses that contain second generation anticoagulant rodenticides. These potentially harmful chemicals may exacerbate health …
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