* All species of animals have the potential to breed, otherwise they wouldn't exist.
* Some animals are sterile due to various factors like genetics, disease, or environmental conditions.
* Some animals are kept in captivity where breeding is not encouraged or possible.
So, there's no single animal that *doesn't* breed. Perhaps you're thinking of specific examples like:
* Mule: A cross between a donkey and a horse, mules are typically sterile.
* Ligers and Tigons: Hybrids of lions and tigers, they are also often sterile.
* Domesticated animals in zoos or sanctuaries: Sometimes, breeding programs are controlled to maintain genetic diversity or prevent overpopulation.
Let me know if you have a particular animal in mind, and I can give you more specific information!