Black-capped Chickadee - Montana Field Guide
Fred Rogers on Twitter: "If white girls only reproduce with black men, doesn't this also breed blacks out of existence? #MulattosForever! http://t.co/msy23i1Z6p" / Twitter
American Black Duck | Audubon Field Guide
Doberman Pinscher Dog Breed Information
Red-winged Blackbird Identification, All About Birds, Cornell Lab of Ornithology
Selective breeding programmes or medium-sized fish farms
The Tragic Mulatto Myth - Anti-black Imagery - Jim Crow Museum
Consequences of Selective Breeding | The Science | loyalfordogs.com
Ghosts of the Prairie: The Reintroduction of the Black-footed Ferret | U.S. Department of the Interior
Selective breeding programmes or medium-sized fish farms
Breeding pair of rhinos out together at the Kansas City Zoo | The Kansas City Star
Doberman Pinscher History: The Surprising Past Behind the Breed – American Kennel Club
Black” is Not the Only Goal in Beef-on-dairy Breeding | Drovers
The Tragic Mulatto Myth - Anti-black Imagery - Jim Crow Museum
This chicken has blue-black bones, organs, and meat—here's why
animal breeding - Breeding | Britannica
Trends in duck breeding populations, 1955-2001 - Documents - USFWS National Digital Library
American Black Duck | State of Tennessee Wildlife Resources Agency
The Origin, Variation, Immunity and Breeding of Cultivated Plants. N. I. Vavilov; trans. from the Russian by K. Starr Chester. Waltham, Mass.: Chronica Botanica; New York: Stechert-Hafner, 1951. 364 pp. $7.50. | Science
