August 12 press release from the University of Central Florida, Orlando. Cowen, R. 1996. Meteorite hints at early life on Mars. Brain may make bright decisions early At the earliest stages of visual processing, the brain interprets the brightness of what is seen by considering contrasts between light and dark areas, a tactic that sometimes creates illusions about the absolute brightness of surfaces. The representation of brightness in primary visual cortex.
Many animals have striking colors and markings that warn their predators that they taste bad.
These traits evolved first in unpalatable creatures living in family groups, a new study suggests. Tracking the evolution of warning signals. Guilford, T. and C. Rowe. Unpalatable evolutionary principles. Nitric oxide, the biochemical linchpin in a host of essential bodily processes, may also guard against the ravages of malaria.