Answer:
They don't forget.
I'm carried by mad animals. What am I?
Microparasite expert at sucking the blood of mammals and birds
What is that which, while it lives, constantly changes its habit, that is buried before it is dead, and whose tomb is valued wherever it is found?
What lives where it cannot breathe and has a hole in its back
The strangest creature you'll ever find: Two eyes in front and many many more behind.
Animal
Difficult
Easy
Food
Funny
Kids
Logic
What am I?