Tag: chemicals

November 19, 2015

Beaver Dams Control Nitrogen Flow in Northeastern Rivers

Beavers may be providing watersheds a service by removing some of the agricultural nitrogen runoff in northeast rivers. “There’s a huge concern about the amount of nutrients of our lands...

September 28, 2015

How Elephant Seals Regulate Mercury Influx

In many ways, elephant seals get a raw deal when it comes to mercury pollution in the ocean. The toxic chemical, the product of mining runoff and other industrial sources,...

September 10, 2015

Suburban Estrogen Could Be Changing Frogs’ Sex Ratios

Increased levels of estrogen in suburban ponds could be affecting the sex ratio of frogs, according to new research. “The more suburban [the frogs] got the more sexually proportionate to...