News tagged with environmental variations

Butterflies switch lifestyles using hormones

Many habitats on Earth change dramatically with the seasons, profoundly affecting food availability, predation pressure and reproductive opportunities for animals living in these seasonal habitats. To survive ...

Aug 15, 2014
3 / 5 (2) 0

First supper is a life changer for lizards

For young lizards born into this unpredictable world, their very first meal can be a major life changer. So say researchers who report evidence on July 3 in Current Biology, a Cell Press publication, that t ...

Jul 03, 2013
4.4 / 5 (7) 1 | with audio podcast

Seeking a splice for better rice

Every organism produces a staggering variety of molecules, each with its own particular biological function. Complex interplay between genetic and environmental factors determines the production levels for ...

Jul 13, 2012
not rated yet 0

Evolution by mistake

(PhysOrg.com) -- A major driving force of evolution comes from mistakes made by cells and how organisms cope with the consequences, University of Arizona biologists have found. Their discoveries offer lessons ...

Jan 24, 2011
3.4 / 5 (9) 17 | with audio podcast

Selected hens give new genetic insights

Studies of heavy, fast-growing hens and small, slow-growing hens provide important new knowledge on the origin of the genetic variation that has enabled them to adapt rapidly to new extreme environments. This is shown by ...

Nov 05, 2010
5 / 5 (1) 0

Scientists Find Genes That Influence Brain Wave Patterns

(PhysOrg.com) -- Scientists have identified new genes and pathways that influence an individual's typical pattern of brain electrical activity, a trait that may serve as a useful surrogate marker for more genetically complex ...

Apr 27, 2010
4.3 / 5 (6) 0 | with audio podcast