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
Black-footed Ferret - Montana Field Guide
American Black Duck | State of Tennessee Wildlife Resources Agency
Ghosts of the Prairie: The Reintroduction of the Black-footed Ferret | U.S. Department of the Interior
The Tragic Mulatto Myth - Anti-black Imagery - Jim Crow Museum
Black” is Not the Only Goal in Beef-on-dairy Breeding | Drovers
Large Black pig - Wikipedia
Lesson Plan: Breeding Bunnies | California Academy of Sciences
Black-capped Chickadee - Montana Field Guide
This chicken has blue-black bones, organs, and meat—here's why
The Only Escape | UC Davis Department of Animal Science
Black-capped Chronicle
Chocolate Labradors have shorter lifespan than rest of the breed - News - VetCompass - Royal Veterinary College, RVC
Trends in duck breeding populations, 1955-2001 - Documents - USFWS National Digital Library
The only remaining Cinereous Vulture breeding colony in the Balkans - Vulture Conservation Foundation
Cross Breeding Plants: How to Breed Berries Naturally | Driscoll's
Black Welsh Mountain Sheep | The Inn at East Hill Farm
Consequences of Selective Breeding | The Science | loyalfordogs.com
Black Lemurs Having Babies on Nosy Komba Island - Volunteer with MRCI
The Tragic Mulatto Myth - Anti-black Imagery - Jim Crow Museum
Black Russian Terrier Dog Breed Information
American Black Duck | Audubon Field Guide
Selective breeding programmes or medium-sized fish farms
History of the Irish Black Breed
Doberman Pinscher History: The Surprising Past Behind the Breed – American Kennel Club
animal breeding - Breeding | Britannica
Black Tern - Montana Field Guide
Breeding pair of rhinos out together at the Kansas City Zoo | The Kansas City Star
