Advances in organ and computer models are raising the prospect that some animal experiments could be eliminated. But there ...

Anxiety is often described as a whole‑brain problem, but a series of mouse experiments suggests that, in some cases, a single misfiring circuit can tip the balance between calm and fear. By nudging ...

Scientist Laura Soucek, who removed tumors from rodents almost 20 years ago, invokes the ‘moral duty’ not to generate false ...

A newly discovered biological chain reaction explains how high levels of a common brain chemical can lead to cellular ...

Obviously caveats must be drawn from a mouse model such as this, but the results have supercharged the team's determination.

A confocal microscopy image of doublecortin-stained newborn neurons (pink) and nuclear stain DAPI (green), which shows that neurogenesis is occurring in the brain of a normal mouse. Scientists at ...

Food poisoning isn’t an experience you’re likely to forget — and now, scientists know why. A study published April 2 in Nature has unraveled neural circuitry in mice that makes food poisoning so ...

On Tuesday, the team behind the plan to bring mammoth-like animals back to the tundra announced the creation of what it is calling wooly mice, which have long fur reminiscent of the woolly mammoth.