Plot thickens in the hunt for a ninth planet

A pair of theoretical physicists are reporting that the same observations inspiring the hunt for a ninth planet might instead be evidence within the solar system of a modified law of gravity originally developed to understand ...

How the evolution of tooth enamel tissue unfolded

Researchers at the UZH Center for Dental Medicine have investigated the importance of the Notch pathway for the evolution of tooth morphology. Mutations in this signaling pathway can lead to defective structures in tooth ...

How hairs help fish feel and humans hear

By discovering how zebrafish use their hair cells to detect distant movement, a team of Case Western Reserve scientists may have found a path to help explain human hearing loss.

Shapeshifting microrobots can brush and floss teeth

A shapeshifting robotic microswarm may one day act as a toothbrush, rinse, and dental floss in one. The technology, developed by a multidisciplinary team at the University of Pennsylvania, is poised to offer a new and automated ...

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