We often say that "humans have consciousness." But what is "consciousness"? When a dog eats, is it conscious or is it instinct? When a plant grows toward the light, is it "thinking"? Is a stone being ...

India, Sept. 27 -- For readers fascinated by the biggest questions about existence, science and human experience, some books ...

Where does consciousness come from? For most scientists and laypeople, it is axiomatic that something in the substance of the brain — neurons, synapses and gray matter in just the right combination — ...