LifeFrogs have acquired DNA from snakes with the help of parasites Horizontal DNA transfer, once thought to be a rare event, has occurred between snakes and frogs at least 54 times in the past 85 million years News
EarthBurst of animal evolution altered chemical make-up of Earth's mantle The Cambrian explosion 500 million years ago saw a huge variety of animals evolve – and also led to carbon being buried in the seabed and ultimately carried into the planet’s mantle News