Some animals have masculine words ending in -o and similar feminine words ending in -a.
| el gato the cat | la gata the catFEM |
| el cerdo the pig | la cerda the pigFEM |
Other animals have completely different words for the male and the female gender.
| el caballo the stallion, the horse | la yegua the mare |
| el toro the bull | la vaca the cow |
And finally, there are animals which have only one grammatical gender, whether they are male of female.
| el pez the fish | el pez the fishFEM |
| la mosca the fly | la mosca the flyFEM |
We can use the words macho and hembra to distinguish between the male and female animals that have only one grammatical gender.
| el pez macho the male fish | el pez hembra the female fish |
