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As we age, the body appears to sacrifice walking efficiency in exchange for stability. Older adults stiffen the ankle more with each step, which may help prevent falls but also forces the muscles to work harder while producing less forward motion. This leads to shorter strides, slower walking, and f...

Scientists have discovered a new extinct amphibian species hiding in the fossil collections of Los Angeles’ La Brea Tar Pits. Named Spea labreae, the Ice Age spadefoot toad is an exceptionally rare find—only one other extinct Pleistocene amphibian has ever been identified in North America. Its bones...

In a worst-case scenario, category one Lala could dump up to 25in (63cm) of rain on Big Island.

Fully self-driving cars for hire have been hailed as the technology of the future for years now. That future has finally arrived -- but only in some cities.

Indiana, Illinois and surrounding states are preparing for another stretch of flooding through this weekend.

The BBC’s Katy Watson explains why triple-murder Erin Patterson is back in court this week trying to overturn her conviction.

A widely available food-preservation chemical is emerging as a disturbing factor in rising UK suicide deaths, particularly among younger people and men. Researchers say the scale may be underestimated and are calling for urgent restrictions on access and harmful online information.

A search and rescue operation is under way to find survivors in Flores, an island in eastern Indonesia.

The move follows a chance conversation at the wildlife attraction and replaces imported fish.