Why did Fern’s father decide to keep the pig and not kill it?

Read the passage: canines may not be the deepest thinkers in the world. but perhaps that's for the best. the life of a dog—sitting alone all day, waiting for everyone to come home—can be pretty boring. super-smart animals would probably get totally stressed out, says university of pennsylvania researcher james serpell. look at it this way: if dogs were any smarter, they probably wouldn't choose to hang around with us. which best describes the tone of the passage?

The verb in the sentence is in what voice

According to stephen hawking in the "origin of the universe" lecture, "why are we here" and "where did we come from" are questions that