genus equus การใช้

Over the expanse of evolutionary time, they came to see, the horse lineage showed tendencies to increase in body size, leading to the sole surviving genus Equus, which includes such imposing animals as Kentucky thoroughbreds and Clydesdales capable of pulling wagons heavy with beer barrels.
It is not that unusual for such related species to be able to cross, and all the members of the genus Equus can cross to produce viable but infertile hybrids, Antzcak said, but when it comes time to make the egg or sperm, the equine chromosomes do not line up.