Why can some species cross breed but their offspring are not fertile?! (eg. a horse and a zebra can haev a foal but it can’t reproduce) if it can work once, why not twice?
Why can some species cross breed but their offspring are not fertile?! (eg. a horse and a zebra can haev a foal but it
Posted on June 20, 2013 by in Question. Comments Off on Why can some species cross breed but their offspring are not fertile?! (eg. a horse and a zebra can haev a foal but it
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