Analyzing beach sand from Mauritius, scientists discovered minerals between 660 million and 1,970 million years old, suggesting an ancient, lost continent beneath the Indian Ocean.
And so are all other placental mammals, according to a new morphological and genetic analysis that paints a clearer picture of our Cretaceous-period common ancestor.
Scientists in China report that they have unearthed the fossil remains of a small plant-eating dinosaur that sports what appears to be a primitive form of feather.
03/19/2009 01:00 am
07/10/2008 01:00 am