Captain America in a turban I wore that costume to challenge the way New Yorkers think about superheroes -- and bearded Sikhs like me ...

Invasive species articles from across Nature Portfolio Invasive species are non-native species that have been introduced to an ecosystem and have established there causing ecological damage.

The Northern Snakehead, a predatory and invasive fish, has been spotted again in the Schuylkill River, this time near Black Rock Sanctuary in Chester County.

Late last year, following four years of construction, Shell 011 Company's recordsetting "Auger" tension leg platform (TLP) was towed out to its new home, some 255 miles southeast of Houston, Texas ...

The latest news and headlines from Yahoo News. Get breaking news stories and in-depth coverage with videos and photos.