Polar bears may seem a long way from civilization, but they’re vulnerable to dangerous chemicals that end up in the environment. These toxins get into the water and work their way into the food web, …
What does a red fox eat? What about a dhole? A hyena? A stoat? PhD students at the University of Sussex in the UK have assembled research into the diets of carnivores around the world, …
Only one population of Indochinese leopards (Panthera pardus delacouri) remains in all of eastern Indochina, and that population is facing a steep decline, according to new research. Comparing camera trap data from 2009 to data …
Looking back at the evolution of bats, researchers found that omnivorous species — which consume both plants and animal products — produce more species over time than bats that are specialized in eating only certain …
Medium-sized carnivores may be particularly at risk from environmental changes, an international team of scientists found, because they spend so much of their waking hours hunting for food that they don’t have much time to …
Bobolinks (Dolichonyx oryzivorus) travel 12,000 miles each year to their North American breeding areas, where they have experienced habitat loss and degradation for decades. The declining grassland bird may also face threats in South America, …
There’s no shortage of deer in the residential neighborhoods of California’s Santa Cruz Mountains. Nevertheless, the closer pumas (Puma concolor) come to human dwellings, the more likely they are to prey on smaller animals instead, …
Deep in the Western Hudson Bay, populations of bearded seals are declining. As polar bears prey on these seals, researchers wonder how similar changes in prey availability could potentially affect the large mammals’ diet. Typically, …
Some ants have a craving for hamburgers with a side of fries, according to a recent study. Researchers from North Carolina State University tested isotope levels in ants that dwell in the city and found …
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