Problems of the apes

Problems of the apes

Bad feet? Aching back? Impacted wisdom teeth? Blame balky designs inherited from your relatives. How has evolution equipped — or More »

Spinal cord injury

Spinal cord injury

A combined nerve-graft and enzyme treatment restored breathing to 9 of 11 rats. More »

Biology as engineer

Biology as engineer

Long ago, nature devised the hinge and ball and socket for appendages like legs and wings. More »

A strike against stroke?

A strike against stroke?

Aware that a small amount of function often returns after a stroke, neurologists have helped neurons recover after an experimental More »

Stem cell battle resumes

Stem cell battle resumes

A federal court has thrown the field of embryonic stem cell research into confusion. Last week, research that destroys embryos could More »

Growing limbs, healing limbs

Growing limbs, healing limbs
Salamanders and fish can regrow perfect limbs and fins after amputation. Can the salamander’s natural regeneration teach us? More »

Embryonic stem cells

Embryonic stem cells

Pres. Obama has removed some limits on studies of cells that can become any body cell. What was lost in eight years of limits on More »

Overcoming paralysis

Overcoming paralysis

Brain electrodes allow monkeys to move robot arm and feed themselves. Experiment proves it’s possible to bypass spinal cord to create More »

Dolly the clone: 10 years later

Dolly the clone: 10 years later

In 1997, Dolly was BIG NEWS. What did Dolly teach? Why did cloning attract so many oddballs, and what is the status of cloning? More »