Mules (a cross between a female horse and a male donkey) are typically sterile. From wiki:
quote:
Mules and hinnies have 63 chromosomes, a mixture of the horse's 64 and the donkey's 62. The different structure and number usually prevents the chromosomes from pairing up properly and creating successful embryos, rendering most mules infertile.
Don't know that they've looked at the zonkey's chromosomes yet to determine with certainty whether it's sterile....
-------------------------------- We are all visitors to this time, this place. We are just passing through. Our purpose here is to observe, to learn, to grow, to love… and then we return home. - Australian Aboriginal proverb
Bazootiehead-in-training
Posts: 37884 | Location: Somewhere in the middle | Registered: 19 January 2010
