News: evolution
Some evolutionary losses may not be lost forever
Nine species of sea snakes have now been identified as having regained the genetic requirements for advanced colour vision, demonstrating that once a complex trait has been lost to evolutionary time, it may be regained in some way.
[Read more about Some evolutionary losses may not be lost forever]
Why don’t larger dogs live as long as smaller breeds?
Scientists have for the first time explained why larger dogs have shorter lifespans than smaller dogs - selective breeding for size has made large breeds more susceptible to cancer.
[Read more about Why don’t larger dogs live as long as smaller breeds?]
Evolution of colour vision in sea snakes
New research has revealed the evolution of colour vision in front-fanged snakes following their transition from terrestrial to fully marine environments, and for the first time, provided evidence of where, when and how frequently the species have adapted their ability to see in colour. The research suggests sea snakes’ vision has been modifying genetically over millions of generations, enabling them to adapt to new environments and meaning they can continue to see prey – and predators – deep below the sea surface.
![RSS News Feed](/global/images/rss.gif" "RSS News Feed"){kind=small}