Cats should not swallow anything that humans should not swallow. The only thing a cat should be eating is food. If a cat swallows anything else this could be fatal.
you chew it
No, they don't eat it. They chew on it and use the shreds for their nest.
They can eat normal cat food like any other color of cat.
they open their mouth and chew like normal humans
NO!
No, it is not normal for a grown-up cat to eat parts of a Christmas tree, though it is normal for cats to get into Christmas trees and sometimes cause them to fall over.
No cats are supposed to eat that!
Yes, it is.
A mother Cat would rather eat her baby then chew off the umbilical cord. i have been studying them for many, many years. I prefer them in a hot soup for lunch, but that's another topic.
Actually people with pica (disorder) chew and EAT all sorts of non food items. Here's a case of a woman that actually eats and is "addicted" to toilet paper! http://www.youtube.com/watch?v=cx58q4TIr_8
Just chew and chew and chew!If I chewed for a long time... I spit it out!I eat Chinese food
nothing technical - because it's there! Don't worry.