How much do we really perceive the passage of time? Are we aware that it changes depending on our state of consciousness? And how do other living things experience time?For most of us, the passage of time is so fundamental to experience, we take it for granted. We tend to anthropomorphize or project our subjective experience of time onto others, assuming they perceive events in the same way we do. But as the following article suggests, the perception of time varies from one living thing to another, seemingly depending on consciousness.