Answer:
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
To unravel me you need a simple key, no key that was made by locksmith's hand. But a key that only I will understand.
It holds most knowledge that has ever been said. But is not the brain, is not the head. To feathers and their masters, it's both bane and boonΒ One empty, and one full.
I'm a type of pizza that is folded in half before cooking to contain a filling
Though easy to spot, when allowed to plume, It is hard to see, when held in a room.
I am a animal that is cute but dangerous, what am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?