Because they are easier to see in the dark.
You don't. The police shoot you.
None, they prefer to live in the dark.
If you leave yogurt alone for 200 years it will develop its own cultures without having to resort to stealing others.
Nobody likes a soggy cracker!
And this is just their way of breaking the ice.
Something from another universe -ity !
I can't help it - she brings out the beast in me!