Scientists study animal consciousness through a combination of behavioral observation, neurological studies, and comparative psychology. Observing animal behavior allows researchers to make inferences about their conscious experiences. For example, they may look for signs of self-awareness, complex problem-solving, or emotional responses.

Neurological studies involve examining the brains of animals to see if they possess structures and neural activity patterns associated with conscious experiences. Techniques like fMRI (functional magnetic resonance imaging) and EEG (electroencephalography) are used to measure brain activity and identify potential correlates of consciousness.

Comparative psychology involves comparing the cognitive abilities and behaviors of different species to understand the similarities and differences in their consciousness. By studying animals across a wide range of species, scientists can gain insights into the variations in conscious experiences among different types of organisms. It's an ongoing and complex field of research that aims to unravel the mysteries of animal consciousness.

The concept of consciousness existing without a physical body is a topic of philosophical and metaphysical speculation. While it is difficult to provide a definitive answer, some philosophical theories and spiritual beliefs propose the existence of non-physical consciousness or souls that can separate from the physical body. These ideas often relate to concepts like the afterlife or reincarnation. However, from a scientific perspective, there is currently no empirical evidence to support the existence of consciousness independent of a physical body. Research and understanding of consciousness are still evolving, and it remains a fascinating area of study.