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Horses and zebras can be bred to produce a zorse, which is infertile. Which is most likely the reason zebras and horses are considered separate species?
They cannot breed.
Their offspring cannot breed.
They look different from each other.
They are found in different habitats.
The correct answer is: Their offspring cannot breed.
Explanation: Zebras and horses are considered separate species primarily because they can produce hybrids, like the zorse, but those hybrids are typically infertile. This inability of the hybrid offspring to reproduce reinforces the distinction between the two species as defined in biological terms. While they can breed, the key factor for species classification is whether the offspring can mate and produce viable offspring.