Neurons that secrete the neuropeptide orexin help mice decide between exercise and snacking. I n neurobiologist Daria ...

Goats are putting the pedal to the metal, or in this case, the hoof to the wheel, at the Caldwell Zoo in Tyler.

For pet and lab mice, running wheels are a common feature, often used to encourage exercise. However, some scientists have argued that mice only run on these wheels because they live in cages and that ...