The most prevalent colors of animals in nature are brown, black, and grey. These colors are important for protection and ...

Brown bears have recently been encroaching on polar bear habitats, perhaps due to climate change. The grizzly’s name comes from the white-tipped, grayish, or “grizzly” furs in the bear’s coat.

Brown Bears The brown bear is a large bear distributed across much of northern Eurasia and North America. Adult bears generally weigh between 100 and 635 kg (220 and 1,400 lb).

Don’t call them Duergar—they’re dark dwarfs. A new study published in the Journal of Cosmology and Astroparticle Physics (JCAP) proposes that the core of our galaxy is full of an all-new category of ...

Brown fat tissue can act to counteract obesity, by burning calories to produce heat, whereas white fat acts as an energy store. Bruce Spiegelman and colleagues reported in Nature last year that ...

Nature Medicine - There is much interest in brown and beige adipocytes, ... Seale, P. et al. PRDM16 controls a brown fat/skeletal muscle switch. Nature 454, 961–967 (2008).