Rodents Monotremes Sexual Dimorphism Reproductive Biology Wildlife Research Marsupials Felines Endangered Species Therapsida Mouse Studies Mouse Genetics Mammoths Woolly Mammoth Cold Adaptations Animal Behavior Woolly Mammoths Echidnas Porcupines Mammalian Longevity Mammal Evolution
Scientists confirm a 5.1-kb deletion in the X-linked ARHGAP36 gene as the cause of orange pigmentation, with implications for broader biological research.