What makes evolution go backwards?
Tue, 19 Mar 2019 14:23:09 EDT
The study of evolution is revealing new complexities, showing how the traits most beneficial to the fitness of individual plants and animals are not always the ones we see in nature. Instead, new research by behavioral scientists shows that in certain cases evolution works in the opposite direction, reversing individual improvements to benefit related members of the same group.
Hepatitis B virus sheds light on ancient human population movements into Australia
Mon, 18 Mar 2019 13:26:52 EDT
Australian researchers have used hepatitis B virus genome sequences to deduce that the mainland Aboriginal population separated from other early humans at least 59,000 years ago.
Fossil teeth from Kenya solve ancient monkey mystery
Mon, 11 Mar 2019 15:27:33 EDT
The teeth of a new fossil monkey, unearthed in the badlands of northwest Kenya, help fill a 6-million-year void in Old World monkey evolution, according to a new study.
Ancient records prompt rethink of animal evolution timeline
Mon, 11 Mar 2019 12:51:46 EDT
Scientists are rethinking a major milestone in animal evolution, after gaining fresh insights into how life on Earth diversified millions of years ago.
Horseshoe crabs are really relatives of spiders, scorpions
Fri, 08 Mar 2019 18:03:02 EST
By analyzing troves of genetic data and considering a vast number of possible ways to examine it, scientists now have a high degree of confidence that horseshoe crabs do indeed belong within the arachnids.