Evolution of the horse 0.0 / 5 ? BiologyEvolutionIGCSEAQA Created by: Nicole DCreated on: 24-02-14 16:44 Evolution of the horse 5 Stages 1 of 8 For each, state a) how many years ago each evolved, b) the height and c) characteristics of the foot: . 2 of 8 Eohippus a) 60 million ; b) 0.4 m ; c) foot with 4 'toes' 3 of 8 Mesohippus a) 40 million ; b) 0.6 m ; c) 3 'toes' - large middle one 4 of 8 Merychippus a) 30 million ; b) 1 m ; c) feet starting to resemble hooves, with 2 'toes' at either side 5 of 8 Pliohippus a) 10 million ; b) 1 m ; c) hooves 6 of 8 Modern Horse a) 1 million ; b) 1.6 m ; c) hooves but longer shins 7 of 8 Why is it useful that the feet of the horse changed? The surface of the land had changed from only marshy land so hooves made it easier to walk on all forms 8 of 8
Comments
No comments have yet been made