"People who possess light armaments that can be thrown long distances have immediate advantages in hunting prey and killing competitors," Curtis Marean, project director at Arizona State University, told the Guardian.
Some shrimp, for example, live in the open ocean and possess light organs, or photophores, which are thought to aid in feeding, species recognition, or camouflage (by counterillumination). Approximately 10percentt of known decapod species occur in freshwater or terrestrial habitats.
Slickheads are dark, soft, and herringlike; species vary greatly in structure, and a few possess light-producing organs.
Some deep-sea fish, notably the anglerfish, possess lights in or near the mouth with which to attract and illuminate prey.
Most photo-responsive materials possess light-sensitive functionalities, Table 3, such as azobenzene, spiropyran or nitrobenzyl groups [51, 52].
It is known that cyanobacteria possess light-sensitive phytochromes to control photosynthesis, phototaxis, and production of pigments (Schmitz et al. 2000; Yeh et al. 1997).
Although many molluscan species possess light-sensitive structures, such as nerve endings in their epidermis as adults, and eye spots, a composite of light-sensitive and pigment cells as larvae, that are functionally important to the organism, we do not consider these to be true eyes.
The purpose of this study is to investigate whether cyanobacteria possess light-dependent electrogenic activity (i.e. are capable of depositing electrons to the extracellular environment in response to illumination), to test whether the electrogenic activity is generic and to probe the mechanism of the electrogenic response.
Cambridge possesses light industries, including scientific instruments and electronics.
They had been convicted of using the hospital as a base for antigovernment activities, possessing light weapons, confiscating medical equipment and spreading rumors and "lies".
The distinction between essence and existence no longer becomes appropriate to assert contingency and only remains notional, since the difference between necessary and contingent beings now depends on whether a being possesses light in itself or light for other than itself (Rizvi 1999: 223).
