Reply #20: Jenkins has outdone herself.... [View All]

[crimsonblue]

her lack of knowledge of animal biology is apparent. When any machine goes through constant, repetitive motions its risk of failure increases. You see this nearly everyday on ESPN-- some athlete has a knee injury or an arm injury (a recent study pegged NBA injury rate at 19.3 per 1000) . All machines break down from repetitive motion. Horse racing is not breeding itself to death-- quite the opposite. Young horses that die from ankle and lower leg injuries generally have weaker joints and bones. Death prevents the propagation of their seed, and thus reducing the prevalence of weaker legs. This elimination from the gene pool increases the gene pool of descendants in the population, because there is less competition. ok, let the evolution flame wars begin...

study link: http://ajs.sagepub.com/cgi/content/abstract/34/7/1077