Mountain lions in greater Los Angeles are proactively shifting their activity to avoid interacting with cyclists, hikers, joggers and other recreationists, finds a new study.

Metamaterials are artificial materials that do not occur in nature. Their components function like atoms in conventional materials but have special optical, electrical and magnetic properties.

Rainforest protection is not only good for biodiversity and the climate -- it also noticeably improves the health of humans who live in the corresponding regions. Researchers show that measures to ...