The rise of the central nervous system (CNS) in animal evolution has puzzled scientists for centuries. Vertebrates, insects and worms evolved from the same ancestor, but their CNSs are different and were thought to have evolved only after their lineages had split during evolution. Researchers from the European Molecular Biology Laboratory (EMBL) in Heidelberg now reveal that the vertebrate nervous system is probably much older than expected. The study, which is published in the current issue of Cell, suggests that the last common ancestor of vertebrates, insects and worms already had a centralised nervous system resembling that of vertebrates today.

People who significantly cut back on the amount of salt in their diet could reduce their chances of developing cardiovascular disease by a quarter, according to a report on bmj.com today.

Researchers in Boston also found a reduction in salt intake could lower the risk of death from cardiovascular disease by up to a fifth.

Strawberries are good for you, but serving them in daiquiri form may make them even healthier, scientists show.

While exploring ways to help keep strawberries fresh during storage, researchers from Thailand and the US discovered that treating the berries with alcohol led to an increase in antioxidant capacity and free radical scavenging activity within the fruit. While such a boost helped the berries resist decay, the same compounds would also be expected to make the strawberries healthier to eat.

Your bird field guide may be out of date now that University of Florida scientists discovered a new genus of frogmouth bird on a South Pacific island.

New genera of living birds are rare discoveries — fewer than one per year is announced globally. David Steadman and Andrew Kratter, ornithologists at the Florida Museum of Natural History, turned up the surprising new discovery on a collecting expedition in the Solomon Islands. Theirs is the first frogmouth from these islands to be caught by scientists in more than 100 years. They immediately recognized it was something different.

Last week I wrote about an incredible energy conference hosted by the Foundation for the Future.  As one of a select few invited to observe and participate in the conference, I had the incredible experience to listen to and meet with 15 of the top thinkers and scientists in the world today on the subject of the future of energy.  The brilliance of both the participants and the level of discussion were so great that I decided that it must be shared with the readership of this blog.  A number of the participants agreed to share their views and research with me.  This then is the first of several columns that will give you insight into our

No kidding? Active kids don't get fat?

Anyway, here it is:

The study is titled "Weekend Schoolyard Accessibility, Physical Activity, and Obesity: The Trial of Activity in Adolescent Girls (TAAG) Study." The full version is currently available online at the Science Direct Web site, under the Articles in Press section.

The study says school playgrounds can help fight against childhood obesity but many are locked and inaccessible to children on weekends – especially in poor and minority neighborhoods.

Green tea may help protect against autoimmune disease, Medical College of Georgia researchers say.

Researchers studied an animal model for type I diabetes and primary Sjogren's Syndrome, which damages the glands that produce tears and saliva.

There's a "First Light Fiesta" in the works at Mt. Hopkins near Amado, Ariz. And Iowa State University astrophysicists will be among those enjoying the celebration of a new telescope system and all the science it will produce.

The global search for a sustainable energy supply is making significant strides at Wake Forest University as researchers at the university's Center for Nanotechnology and Molecular Materials have announced that they have pushed the efficiency of plastic solar cells to more than 6 percent.

Wake Forest researchers describe how they have achieved record efficiency for organic or flexible, plastic solar cells by creating "nano-filaments" within light absorbing plastic, similar to the veins in tree leaves. This allows for the use of thicker absorbing layers in the devices, which capture more of the sun's light.

A few days ago we told you about the new hydrothermal vent named Medusa.

They chose that name because that name because they also found a unique pink form of the jellyfish order stauromedusae.

The bell-shaped jellyfish sighted near the vents may be of a new species "because no one has seen this color before," said Karen Von Damm, a geologist at the University of New Hampshire.