Lifesight (3.5e Creature Ability)

Lifesight
Summary:: Allows detection of living creatures.

A creature with this supernatural ability can detect the life force present in a living target, including its condition. The creature can tell whether a living creature within the range of its lifesight is healthy, injured, wounded, near death, dying, or dead (see Table), as well as whether it is diseased or poisoned. Invisibility, darkness, and most kinds of concealment are irrelevant, though the creature must have line of effect to a creature to discern that creature. The ability's range is specified in the creature's descriptive text. Lifesight allows the user to pinpoint unliving creatures, as per the detect undead spell.