2016-03-22, 18:10
Many species now going extinct may vanish without a fossil trace
Scientists struggle to compare the magnitude of Earth's ongoing sixth mass-extinction event with the five great die-offs of prehistory. A new study by three paleontologists shows that the species now perishing may vanish without a permanent trace -- and earlier extinctions may be underestimated as well.
http://feeds.sciencedaily.com/~r/science...200445.htm
Scientists struggle to compare the magnitude of Earth's ongoing sixth mass-extinction event with the five great die-offs of prehistory. A new study by three paleontologists shows that the species now perishing may vanish without a permanent trace -- and earlier extinctions may be underestimated as well.
http://feeds.sciencedaily.com/~r/science...200445.htm