disease & medicine, cell & molecular biology
Astronaut Worms Return from Space
Jef Akst | Dec 1, 2011
After 6 months in orbit, Caenorhabditis elegans return to Earth—alive and well.
Newts' New Eyes
Richard P. Grant | Dec 1, 2011
Cut off a newt’s tail or a leg, or remove a lens from its eye, and it grows back. However, whether newts can continue to do this throughout their lives, or lose the ability as they get older, has remained a mystery. 
Eye of Newt
Richard P. Grant | Dec 1, 2011
Researchers find that newts are capable of regenerating body parts well into old age.
Critical Connections
Karen Hopkin | Dec 1, 2011
Through a series of sustained collaborations, Joshua Sanes has deciphered the molecular synergy that guides synapse formation.
Frank Bradke: Privy to Axon Growth
Jef Akst | Dec 1, 2011
Full Professor and Senior Research Group Leader, German Center for Neurodegenerative Diseases. Age: 42
Brake Failure
Sabrina Richards | Dec 1, 2011
Editor’s choice in Cell Biology
Avoiding Animal Testing
Andrew Rowan | Dec 1, 2011
Advances in cell-culture technologies are paving the way to the complete elimination of animals from the laboratory.
Taste in the Mouth, Gut, and Airways
Taste in the Mouth, Gut, and Airways
Thomas E. Finger and Sue C. Kinnamon | Dec 1, 2011
The tongue may be the epicenter of taste sensation, but taste receptors are scattered throughout the digestive and respiratory tracts.
Matters of Taste
Thomas E. Finger and Sue C. Kinnamon | Dec 1, 2011
Compounds we perceive as sweet or bitter in the mouth trigger similar receptors and signaling pathways elsewhere in the body, helping to regulate digestion, respiration, and other systems.
Human ES Cells Evolve in Culture
Ruth Williams | Nov 28, 2011
Researchers identify common genetic changes in cultured human embryonic stem cells, including one that confers a growth advantage.