"The mouse is learning."
Translation:Die Maus lernt.
Clever mouse, but unfortunate too, as being an owl, Duo will hunt and eat it.
‘The mouse learns.’ = ‘Die Maus lernt.’; ‘Die Mäuse lernen.’ = ‘The mice learn.’
In English, 'it' is used to animals and things. Does 'es' have the same role in German then?
Nope, it is die Maus (fem), also die Katze (fem) ... You have to remember the gender ;)