Lizards Bask In The Sun For A Vitamin D Boost:
Keeping warm isn't the only reason lizards and other cold-blooded critters bask in the sun. According to a study published in the May/June issue of Physiological and Biochemical Zoology, chameleons alter their sunbathing behavior based on their need for vitamin D.
Breaking The Animal Kingdom's Color Code:
Research spearheaded by the University of York has used computer models to explain the evolution of the distinctive colouring of many species of wildlife. Charles Darwin was fascinated by the colours of animals - he once wrote to his colleague Alfred Russell Wallace asking why certain animals were "so beautifully and artistically coloured".
Human Brains Make Their Own 'Marijuana':
U.S. and Brazilian scientists have discovered that the brain manufactures proteins that act like marijuana at specific receptors in the brain itself. This discovery may lead to new marijuana-like drugs for managing pain, stimulating appetite, and preventing marijuana abuse.
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