There are certain segments of DNA that have remained relatively unchanged in the tens of millions of years since mammals split from their reptilian forebears— tried and true segments of code that remained unchanged throughout the course of mammalian evolution. However, roughly one million years ago a sudden change inread more
A new analysis of ancient DNA has revealed that some species of ice-age megafauna, including woolly mammoths, wild horses and steppe bison, survived much further into the modern era than previously thought. The recovered genetic material taken from soil samples from Canadian permafrost, indicates that some of these species didn’tread more
Although assumed that reversals in the Earth’s magnetic field has little noticeable impact on the living organisms on this planet, the discovery of well-preserved trees dating from the last geomagnetic reversal 42,000 years ago suggest that such an event may cause major disruptions for both the climate, and the planet’sread more