Trees are suffering one devastating epidemic after another, unleashed by insects and bacteria that enter the country because of global trade.

Tribes and scientists are mounting an urgent trapping effort to keep European green crabs from devastating a corner of Puget Sound.

© Chona Kasinger for The New York Times

Tribes and scientists are mounting an urgent trapping effort to keep European green crabs from devastating a corner of Puget Sound.

A changing climate is helping to fuel the growth of a gigantic blob of foul-smelling seaweed that has washed up in some coastal communities. Mexico is fighting back.

© Fernando Llano/Associated Press

A research team found reproducing populations of Manila clams in Cape Cod and Boston Harbor. A stretch of Atlantic shoreline that had remained free of Manila clams now appears to support reproducing populations of the invasive shellfish. Biologists led by the University of Massachusetts Amherst, MIT Sea Grant at the Massachusetts Institute of Technology and [...]

Officials in Santa Clara County began knocking on doors on Monday to collect potentially infested plants sold at some Costco stores.

Coastal animals are creating an unexpected new community.

Google's making a move in the mosquito business.