President Nixon signed the Endangered Species Act in 1973 with broad bi-partisan support. Now, the landmark legislation is being targeted by industry, with support from the GOP. What happens next could determine the fate of hundreds of endangered species.
Researchers found the virus itself doesn’t kill the fish. However, at higher water temperatures, it can weaken their immune system and allow other infections to spread, which ultimately finish off the fish.
Birds come north in the spring to feed on the explosion of insects and plant life that takes place during North American summers. But a warming planet is changing what we see at our bird feeders and in our forests.
This "underdog" of aquatic animals can filter up to 600 gallons of water per month. Working together, mussels can dramatically clean the rivers where they live. Now, Philadelphia is banking on just that.