Kiwifruit duplicated its vitamin C genes twice, 50 million and 20 million years ago
Thu, 20 Sep 2018 16:10:46 EDT
Today's kiwifruit contains about as much vitamin C as an orange -- the result of the kiwifruit's ancestors' spontaneously duplicating their DNA in two separate evolutionary events approximately 50-57 million and 18-20 million years ago.
What makes a mammal a mammal? Our spine, say scientists
Thu, 20 Sep 2018 16:09:49 EDT
Mammals are unique in many ways. We're warm-blooded and agile in comparison with our reptilian relatives.
Tiny fossils reveal how shrinking was essential for successful evolution
Mon, 17 Sep 2018 11:15:51 EDT
A new study shows that getting smaller was a key factor contributing to the exceptional evolution of mammals over the last 200 million years.
Earth's oldest animals formed complex ecological communities
Mon, 17 Sep 2018 11:15:40 EDT
Ediacara biota were forming complex communities tens of millions of years before the Cambrian explosion.
Can you evolve while being robust?
Mon, 10 Sep 2018 14:24:33 EDT
Biophysical constraints on evolvability and robustness have been uncovered.