Attacks on Brazil's ecological paradises threaten biodiversity

Brazil is home to more than half of the world's plant and animal species, but its ecological paradises are facing growing threats from agriculture and mining lobbies who have found a champion in far-right President Jair Bolsonaro, ...

Preliminary study suggests mercury not a risk in dog foods

Researchers at the University of California, Davis, recently investigated levels of methylmercury in a small sampling of commercial dog foods and found good news for dog owners. Of the 24 diets tested, only three were positive ...

Invasive crayfish sabotages its own success, study says

Since they were first released as live bait in the mid-twentieth century, rusty crayfish have roamed lake bottoms in northern Wisconsin, gobbling native fish eggs, destroying aquatic plants, and generally wreaking havoc on ...

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