Diatoms account for a large proportion of the phytoplankton found in the water, and live both in the open sea and in freshwater lakes. By reviving 100-year-old spores that had laid buried and inactive in bottom sediment, researchers at the University of Gothenburg, Sweden, have shown that diatoms are also genetically stable and survival artists.

Scientists now have a better understanding of why spider silk fibers are so incredibly strong. Recent research, published by Cell Press on February 15th in Biophysical Journal, describes the architecture of silk fibers from the atomic level up and reveals new information about the molecular structure that underlies the amazing mechanical characteristics of this fascinating natural material.

Scientists have discovered a new way to generate human motor nerve cells in a development that will help research into motor neurone disease.

A new study offers critical insight into the biochemistry of a rare and fatal form of epilepsy known as Lafora disease, a genetic condition that typically strikes children in their teens. The disease is characterized by the buildup of a "wrecked" form of glycogen, a stored form of glucose, in the brain and specifically in neurons. It now appears those errors and the structural problems they cause are all because the enzyme that normally builds glycogen is prone to making mistakes, according to the report in Cell Metabolism.

An AIDS vaccine tested in people, but found to be ineffective, influenced the genetic makeup of the virus that slipped past. The findings suggest new ideas for developing HIV vaccines.