Biology


The green anole lizard (Anolis carolinensis), when caught by a predator, can lose its tail and then grow it back.
By understanding the secret of how lizards regenerate their tails, researchers may be able to develop ways to stimulate the regeneration of limbs in humans. Now, a team of researchers from Arizona State University is one step closer to solving that mystery. The scientists have discovered the genetic "recipe" for lizard tail regeneration, which may come down to using genetic ingredients in just the right mixture and amounts.

Environment


Multiple fires are visible in in this image of the Para and Mato Grosso states of Brazil.
Multiple fires are visible in in this image of the Para and Mato Grosso states of Brazil. Many of these were most likely intentionally set in order to deforest the land. Deforestation is the removal of a forest or stand of trees where the land is thereafter converted to a nonforest use. Examples of deforestation include conversion of forestland to farms, ranches, or urban use. The herringbone-patterned tan lines cutting through the dark green of the Amazon Rainforest in the middle of the image are evidence of deforestation in the Brazilian state of ParĂ¡. The deforestation in ParĂ¡ follows the Brazialian national motorway BR 163, passing by cities such as Novo Progresso. The lower half of the image shows the state of Mato Grosso.

Health & Medicine

University of Adelaide researchers have discovered that the immune system is defective in people suffering from irritable bowel syndrome, which is a major reason why sufferers have ongoing issues with pain.




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