Why mammoths loved the cold
Temperature-sensing protein made the hairy beasts prefer to be cool
![Wooly mammoths](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/07/ticker_Miller_Woollymammoth_7-2015-1.jpg?fit=860%2C460&ssl=1)
Woolly mammoths were fat, hairy and could tolerate extreme cold. Now researchers have tracked down some molecular changes that contributed to those adaptations.
Courtesy of Giant Screen Films © 2012 D3D Ice Age, LLC