We're both sentient creatures; we both feel pain; we know hunger; we know cold.

All over the world we have yet to agree our rights over, and responsibilities towards, other sentient creatures and our delicate symbiosis with them.

They are sentient creatures which communicate through psionic sounds referred to as songs.

They have four tentacles around a lamprey-like mouth, and require the brains of sentient creatures as part of their diet.

He states they are the reason most sentient creatures have an instinctual fear of the dark.