ScienceDaily: Top Science News

---

• Fresh analysis of dinosaur skulls shows three 'species' are actually one
• On the trail of dark energy: Physicists propose Higgs boson 'portal'
• The 'genetics of sand' may shed new light on evolutionary process over millions of years

Fresh analysis of dinosaur skulls shows three 'species' are actually one Posted: 10 Aug 2013 03:36 AM PDT A new analysis of dinosaur fossils has revealed that a number of specimens of the genus Psittacosaurus -- once believed to represent three different species -- are all members of a single species. The differences among the fossil remains that led other scientists to label them as separate species in fact arose from how the animals were buried and compressed, the study found.

On the trail of dark energy: Physicists propose Higgs boson 'portal' Posted: 10 Aug 2013 03:36 AM PDT One of the biggest mysteries in contemporary particle physics and cosmology is why dark energy, which is observed to dominate energy density of the universe, has a remarkably small (but not zero) value. Now, two physicists suggest that the Higgs boson could provide a possible "portal" to physics that could help explain some of the attributes of the enigmatic dark energy and help resolve the cosmological constant problem.

The 'genetics of sand' may shed new light on evolutionary process over millions of years Posted: 10 Aug 2013 03:36 AM PDT An evolutionary ecologist is using "grains of sand" to understand more about the process of evolution. The fossils of microscopic aquatic creatures called planktonic foraminifera, often less than a millimeter in size, can be found in all of the world's oceans. The remains of their shells now resemble grains of sand to the naked eye and date back hundreds of millions of years.

You are subscribed to email updates from ScienceDaily: Top Science News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610