The teeth of the browsers, shuch as Mesohippus, were coverd with a thick layer of enamel.?

the teeth of the browsers, shuch as Mesohippus, were coverd with a thick layer of enamel. the teeth of the modern-day horse, by comparison, have less enamel and appear to be much wider and flatter. provide reasons for some od the changes on teeth.

The teeth of the browsers, shuch as Mesohippus, were coverd with a thick layer of enamel.?
This would be the directly linked to the diets of these animals. Less enamel on horses because they eat grasses, oats, hay and fruit/vegetables (when they come in contact with benevolent humans), that do not require excessive mastications. However, the Mesohippus diet also included small twigs as well as fruit. Breaking down more woody food would necessitate stronger teeth - with thicker layers of enamel.