Brown Bear, Brown Bear, What Do You See? White Dog, Black Sheep, a Goldfish, a Teacher or a Mother, and Students or Children. The 1984 British edition of the book substitutes a monkey for the teacher. Carle explained that variations in text between editions (mostly on the last page) were due to Martin, and that he made new illustrations to go with the changes. Carle and Martin published three spin-off books: "Polar Bear, Polar Bear, What Do You Hear?" (1991) uses zoo animals and sounds; "Panda Bear, Panda Bear, What Do You See?" (2003), endangered species; and "Baby Bear, Baby Bear, What Do You See?" (2007), North American
Sooty (gene) that coat darkening is a polygenic trait. Just as in horses, the degree of sootiness in mice varies widely; some individuals have darker hairs that form a dorsal line, while others have extensive sootiness throughout. A statistical analysis of 1369 offspring of five Franches-Montagnes stallions indicated that darker shades of chestnut and bay might follow a recessive mode of inheritance. Horses without any sooty effect are termed "clear-coated." Sooty (gene) A horse coat color that has the Sooty trait is characterized by black or darker hairs mixed into a horse's coat, typically concentrated along the topline of the horse and