A "genetic rescue" involving the mating of different subspecies may offer the best way to save increasingly fragmented tiger populations.

The most diverse bee communities have the lowest levels of viral pathogens. "Promoting diverse bee communities may be a win-win strategy..."

An exceptionally well-preserved skull of the duckbill dinosaur Parasaurolophus solves mysteries of its signature crest and family tree.

Bumble bees in low-quality landscapes with fewer flowers and places for nesting have more diseases and parasites, researchers say.

"The time is now to prevent a potential devastation to the region's waters and the livelihoods and health of millions of people..."

Two newly discovered species of fungi infect flies and then get them to rain down spores to infect others before they die, researchers have found.

DNA in animal feces could help researchers get a picture of an entire ecosystem and the secondary effects of extinction or invasive species.

In just 100 years, humans have had a significant impact on the genetic diversity of lions. "I was surprised... and disappointed," says James Derr.

New research pins down when the first land plants appeared on Earth, confirming what earth scientists have suspected.

"The birds that people find charismatic and lovable are the ones living in the areas being deforested and dried out as the planet warms."