A paleontologist was trying to locate the site of a famous 1908 discovery when a rancher in Wyoming shared an important clue.

A new study says several states are doing the right things to get students to show up to school regularly.

Will-o’-the-wisps are an unexplained natural phenomenon that legend says are the spirits of those who died in the swamp.

The comet could be older than our solar system. The comet is also distinct because nickel vapor was detected in the gas surrounding it.

Regina Barber and Emily Kwong of Short Wave talk about spider web architecture, storytelling and memory, and why more TV pixels may not translate to a better viewing experience.

A new look at the "Dueling Dinosaurs" fossil reveals that Tyrannosaurus rex was not the only tyrannosaur roaming the land.

A new study is reviving hope that a twice-daily pill can slow down Alzheimer's in people whose genes put them at high risk for the disease.

NPR's Ailsa Chang goes on a nighttime hike in search of spiders, with Lisa Gonzalez of the Natural History Museum of Los Angeles County.

In Pamplona, where the bulls run, a scientist studies the physics of crowds.

California wildlife officials have been working to mitigate the impact of the state's rebounding wolf population on its ranchers. The Northern California wolves that were euthanized had become dependent on cattle for food.