When observed under a microscope, guard hairs from mice resemble optical sensors used in thermal cameras to detect heat, according to a new study. Amanda was an associate editor at The Scientist, ...

Cashmere goats have two layers of hair — thick wiry guard hairs and a super-soft cashmere undercoat. While a sheep can produce at least 3 kilos of wool each year, a cashmere goat will only give ...

The back is dark brown to black with yellowish guard hairs, the sides are yellowish orange with scattered, black guard hairs. The underparts are creamy white. Large individuals may weigh as much as 26 ...