Kitty & Ira Kitty & Ira Why Does My Cat Hold The Kitty By Her Throat?

Why does my cat hold the kitty by her throat? - kitty & ira kitty & ira

This makes it difficult, because then the kitten would be mourning.
When she was cleaning the baby, she appears as she plays, and under the throat for cats. It seems she has the intention to kill, but it does not work.
I do not know what they think. Is this normal for a cat that every time you clean the cat or the cat licks do.
The mother is a stray cat.