Human breasts are strange. Our offspring are entirely dependent on them, and humans are the only species to have perpetually swollen mammary glands. Evolutionarily speaking though, breasts are a big reason our species has enjoyed incredible success.
Human breasts are strange. Our offspring are entirely dependent on them, and humans are the only species to have perpetually swollen mammary glands. Evolutionarily speaking though, breasts are a big reason our species has enjoyed incredible success.