▁temper ament : ▁spir ited ▁" hot ▁blood s " ▁with ▁speed ▁and ▁end urance ; ▁" c old ▁blood s ," ▁such ▁as ▁draft ▁horses ▁and ▁some ▁pon ies , ▁suitable ▁for ▁slow , ▁heavy ▁work ; ▁and ▁" w arm blo ods ," ▁developed ▁from ▁cross es ▁between ▁hot ▁blood s ▁and ▁cold ▁blood s , ▁often ▁foc using ▁on ▁creating ▁bre eds ▁for ▁specific ▁r iding ▁purposes , ▁particularly ▁in ▁Europe . ▁▁▁ ▁Hor se ▁bre eds ▁are ▁groups ▁of ▁horses ▁with ▁distinct ive ▁characteristics ▁that ▁are ▁transm itted ▁consist ently ▁to ▁their ▁off spring , ▁such ▁as ▁con formation , ▁color , ▁performance ▁ability , ▁or ▁disposition . ▁These ▁inherited ▁tra its ▁are ▁usually ▁the ▁result ▁of ▁a ▁combination ▁of ▁natural ▁cross es ▁and ▁artificial ▁selection ▁methods ▁aim ed ▁at ▁producing ▁horses ▁for ▁specific ▁tasks . ▁C ertain ▁bre eds ▁are ▁known ▁for ▁certain ▁tal ents . ▁For ▁example , ▁Standard bre ds ▁are ▁known ▁for ▁their ▁speed ▁in ▁har ness ▁racing . ▁Some ▁bre eds ▁have ▁been ▁developed ▁through ▁centuries ▁of ▁cross ings ▁with ▁other ▁bre eds , ▁while ▁others , ▁such ▁as ▁Tennessee ▁Walk ing ▁H ors es ▁and ▁M org ans , ▁developed ▁from ▁a ▁single ▁s ire ▁from ▁which ▁all ▁current ▁bre ed ▁members ▁descend . ▁More ▁than ▁ 3 0 0   hor se ▁bre eds ▁exist ▁in ▁the ▁world ▁today . ▁ ▁Origin ▁of ▁bre eds ▁ ▁Modern ▁horse ▁bre eds ▁developed ▁in ▁response ▁to ▁a ▁need ▁for ▁" form ▁to ▁function ",