today They are a separate species Equus ferus przewalskii

Last updated: 4/22/2023

today They are a separate species Equus ferus przewalskii from the domestic horse Equus caballus However DNA analysis suggests that Przewalski s horses and domestic horses are related through a common ancestor a Describe how the common ancestor of these two horse species could have diverged into two modern species through the process of speciation Use the terms gene flow and isolation in your description 3 points b Przewalski s horses live in the steppes of central Asia where conditions are too harsh and dry for domestic horses to survive The two species also have different numbers of chromosomes The Przewalski s horse has 66 chromosomes while a domestic horse has 64 chromosomes Identify the role these two factors likely played in speciation 2 points c Przewalski s horses are nearly extinct in the wild but conservation efforts hope to increase their numbers Describe some causes of extinction and make a prediction about what