The praying mantis is a small animal with an elegant body.

She stands still, beautiful and fertile; she waits for a mate with courage and strength to approach her. Then she chooses, they mate, and she bites his head off. He dies.

She may feel sad or guilty for a while. However soon enough she will be hunting again.

Nature is full of behaviors considered immoral by humans. We only need to step back and consider ourselves in the greater scheme of things. And she might starve before she can lay eggs.