Consciousness isn’t easy to define, but we know it when we experience it. It’s not so simple to decide when someone else is conscious, however, as doctors must sometimes do with patients who ...

What is consciousness? This question has occupied philosophers for millennia and remains a major mystery of science today. Aristotle believed that consciousness exists as a continuum. So plants ...

I urge that we accept a Universal Declaration on Animal Sentience and stop pretending we don't really know if animals are sentient or that we don't know what they want and need.

However, the document describes this consciousness as a “pool of limitless, timeless perception,” which does not exactly match up with the tenets of reincarnation as described in some religions.