There are many living things that can't reproduce on their own, including:
- Sterile individuals: Some animals, like mules (a cross between a horse and a donkey), are sterile and cannot reproduce.
- Hybrids: Hybrids, like ligers (a cross between a lion and a tiger), are often infertile.
- Clones: Clones are genetically identical copies of an organism, and while they can live and grow, they cannot reproduce naturally.
- Certain species: Some species, like the bdelloid rotifer, reproduce asexually and do not have males.
While these organisms are alive, they cannot create offspring through traditional means of reproduction.
