T his summer, toned arms became the new status symbol—and a near-impossible to achieve beauty standard.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. With three hearts, blue blood, and eight arms that seem to have a ...

Octopuses are ambidextrous, a new study finds, but they favor their front arms for investigating surroundings and their back arms for locomotion.