Many nouns that refer to humans and other animals have both a masculine and a feminine form.
In this way, we can make a distinction between male cats and female cats, and between a boy and a girl.
The nouns above are called declinable nouns, which means that they change their ending according to their gender.
When we do not know the gender of a living being, we use the masculine form of the noun.
While practicing the lessons, you will sometimes see the symbol , which is the symbol for female.
For example the cat refers to a female cat, and should be translated with gata and not with gato.