Their popularity has left ever more heritage breeds at risk of extinction ... performance means more of what humans value, such as pigs with extra ribs, prolific egg-laying hens and sheep with ...

local heritage breeds also have unique symbolic and culinary value. A cohort of Australian farmers is working hard to conserve dozens of endangered livestock breeds such as Large Black pigs ...

Connor Prairie raises several heritage breeds, including Tunis sheep, Island hogs, English longhorn cattle, and American rabbits. These breeds are preserved for their unique genetic traits and ...