Fanged kangaroo research could shed light on extinction
Mon, 16 Oct 2017 09:27:19 EDT
Fanged kangaroos -- an extinct family of small fanged Australian kangaroos -- might have survived at least five million years longer than previously thought. A new study has found the species might have competed for resources with ancestors of modern kangaroos.
Paleogenomic analysis sheds light on Easter Island mysteries
Thu, 12 Oct 2017 12:30:46 EDT
New paleogenomic research appears to rule out the likelihood that inhabitants of Easter Island intermixed with South Americans prior to the arrival of Europeans on the island in 1722.
Last common ancestor of humans and apes weighed about five kilograms
Thu, 12 Oct 2017 09:09:57 EDT
New research suggests that the last common ancestor of apes -- including great apes and humans -- was much smaller than previously thought, about the size of a gibbon. The findings, published today in the journal Nature Communications, are fundamental to understanding the evolution of the human family tree.
Mass extinctions led to low species diversity, dinosaur rule
Tue, 10 Oct 2017 12:40:59 EDT
Two of Earth's five mass extinction events -- times when more than half of the world's species died -- resulted in the survival of a low number of so-called 'weedy' species that spread their sameness across the world as the Earth recovered from these dramatic upheavals. The findings could shed light on modern high extinction rates and how biological communities may change in the future.
Evolutionary stepping stone to beet-red beets discovered
Tue, 10 Oct 2017 10:56:54 EDT
Scientists describe an ancient loosening up of a key biochemical pathway that set the stage for the ancestors of beets to develop their characteristic red pigment.