Science

Continue your lunation observations: The first quarter moon is on Wednesday Jan. 24. Here’s what to look for: a. The line th ...

Treatment plants that handle conventional oil and gas waste water are causing a buildup of radioactive materials at the bottom of three Western Pennsylvania waterways.

Wildlife photographer Nick Nichols remembers a close call with a tigress.

We reintroduce animals to their native habitat as part of an impulse to re-create “wilderness” — a place untouched by man. The result is more like the feeling of wilderness.

A hidden world of pathways leads wild animals safely across busy roads, keeping ecosystems connected even as human use fragments and disturbs them.

Since the 1950s, a timber company has used conservation-driven logging to balance productive use and wild forests.

There's no way to predict what strain of the shape-shifting flu virus could trigger another pandemic or, given modern medical tools, how bad it might be.