The white bear reminds us to be thankful for the lush ... This means that they’re considered leucistic. It’s the result of a variant (also called an allele) of the mc1r gene, which is involved ...

The team found a colony of Thyroptera tricolor, or Spix’s disc-winged bats, with a “leucistic adult male,” the study said. A photo shows the white bat inside its typical roost, a specific ...