Most of the work on motor neuron death in tetrapods was carried out on limb innervating motor ... In the future, with more advanced imaging techniques, the sensor fish in the present study may provide ...

After the event, no living tetrapod weighing more than 55 lbs survived. A skeleton of Amargasaurus in the Ultimate Dinosaurs traveling exhibition at the Perot Museum of Nature and Science in Dallas.

Scientists dive into the genomes of whales, elephants, and other animal giants looking for new weapons in the fight against cancer.