Starry stonewort has become a poster child for invasives. Expensive to control and nearly impossible to eradicate.

Established in 1948, the Association for Slavic, East European and Eurasian Studies (ASEEES)—a nonprofit, non-political, scholarly society—is the leading international organization dedicated to the ...

Inspired by the popular PBS series “Finding Your Roots with Henry Louis Gates, Jr.” and shot on the campus of Penn State University, campers explore their own family history and DNA ancestry.

morgan23 / Getty Images A fully grown tree may lose several hundred gallons of water through its leaves on a hot, dry day. The same tree will lose nearly no water on wet, cold, winter days, so ...