I’m undecided on this topic, but it’s an interesting test of imagination as to whether you could envisage animals before afforded the same rights as humans in the future. Certainly the direction of travel strengthens that proposition, and contemporary attitudes to slavery show just how wrong you can be simply by relying on the ethics in vogue during your lifetime.

loots of people attribute the same value to animals as they attribute to humans.

A life, is a life.

Also he did not say that they where the same, he implied they where comparable on some dimension.