How horses lost their toes
Ancient equines had up to four toes, which they shed as their body size grew
![Hyracotherium illustration](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/08/082517_EU_horse-toes_main.jpg?fit=860%2C460&ssl=1)
TOES TO SPARE The ancestral horse Hyracotherium (illustrated) roamed North America about 55 million years ago. It had four toes on its front feet and three on its back feet.
TomCatX/Wikimedia Commons