Sea turtle migration Studies of loggerhead and leatherback hatchlings have shown that moonlight reflected from the sea is an important visual cue in guiding movement from the beach to the sea. This navigational mechanism becomes a handicap if nesting sites are affected by artificial lighting since this can mean that hatchlings head towards the artificial lights rather than offshore towards the moonlit sea. Hence, the use of moonlight by turtle hatchings as a navigational cue can be considered an 'evolutionary trap'. Loggerhead and green turtles can detect the orbital movement of waves and use this information to swim perpendicular to the waves crests.
Creature of statute Creature of statute A creature of statute (also known as creature of the state) is a legal entity, such as a corporation, created by statute. Creatures of statute may include municipalities and other artificial legal entities or relationships. Thus, when a statute in some fashion requires the formation of a corporate body—often for governmental purposes—such bodies when formed are known as "creatures of statute." The same concept is also expressed with the phrase "creature of the state." The term "creature of statute" is most common to the United States. In the United Kingdom, these bodies are simply called statutory corporations