Millions of hedgehogs die as they cross the roads, but a discovery is paving the way for a warning that might stop them crossing at dangerous times.

Ultra high-frequency sound transmits energy through flesh and other materials that block light or heat used in conventional 3D printing. Stephen Shankland worked at CNET from 1998 to 2024 and wrote ...

Does anyone know the cause(s) of a high frequency sound that occurs on monitors for certain screens (this seems mostly when white but not always)? It seems to happen on both my new Samsung 900IFT and ...

A newly-named fossil whale species had superior high-frequency hearing ability, helped in part by the unique shape of inner ear features that have given scientists new clues about the evolution of ...