Ancient Egyptians to modern humans: Coronary artery disease genes benefit reproduction
Thu, 22 Jun 2017 14:29:28 EDT
Researchers have found that genes for coronary heart disease (CAD) also influence reproduction, so in order to reproduce successfully, the genes for heart disease will also be inherited.
Fossil holds new insights into how fish evolved onto land
Wed, 21 Jun 2017 16:59:25 EDT
The fossil of an early snake-like animal -- called Lethiscus stocki -- has kept its evolutionary secrets for the last 340-million years. Now, an international team of researchers has revealed new insights into the ancient Scottish fossil that dramatically challenge our understanding of the early evolution of tetrapods, or four-limbed animals with backbones.
Reconstruction of ancient chromosomes offers insight into mammalian evolution
Wed, 21 Jun 2017 14:51:39 EDT
Researchers have gone back in time, at least virtually, computationally recreating the chromosomes of the first eutherian mammal, the long-extinct, shrewlike ancestor of all placental mammals.
Tiny fossils reveal backstory of the most mysterious amphibian alive
Mon, 19 Jun 2017 15:15:34 EDT
The fossils of an extinct species from the Triassic Period are the long-missing link that connects Kermit the Frog's amphibian brethren to wormlike creatures with a backbone and two rows of sharp teeth, new research shows. Named Chinlestegophis jenkinsi, the newfound fossil is the oldest relative of the most mysterious group of amphibians: caecilians. Today, these limbless, colorful serpentine carnivores live underground and range in size from 6 inches to 5 feet.
Animal evolution: Hot start, followed by cold shock
Thu, 15 Jun 2017 08:45:56 EDT
The initial phases of animal evolution proceeded faster than hitherto supposed: New analyses suggest that the first animal phyla emerged in rapid succession -- prior to the global Ice Age that set in around 700 million years ago.