A horse is an animal!? I've been lied to my whole life!... My eyes have been opened!
No, just this specific one, note the definite article. The rest of them are aliens.
I wrote "the horse is a animal" and got it wrong. I thought et stood for 'an' 'a' and 'one'
Ah, no no. Both en and et translate to "a" and "one" in English. But "an" is a special form of "a" which is used in front of words that start with a vowel sound: an animal, an answer, an unstable rift, an organ, an hour.