Warren Loeppky has been a kids’ dentist for 20 years. Over the last decade, he’s been seeing more tooth decay in his young patients. Not only is it more common,…

Once you’re stuffed from a big meal, most foods lose their appeal. But see a sweet treat and you might be ready to make room for more. Some people joke…

Objective: Test if adding glycerin or corn syrup improves a bubble solution Areas of science: Chemistry Difficulty: Easy beginner Time required: ≤ 1 day Prerequisites: None Material availability: Readily available…

People around the world keep goats, sheep, llamas and other ungulates as pets and livestock. Yet very little is known about how these animals think and perceive the world. Alina…

Vaccines have made the world a much safer place — especially for children. Before vaccines, many kids suffered from debilitating or deadly infections. Such horrible illnesses included measles, polio and…

Parrots are natural chatterboxes. Small parrots known both as parakeets and as budgerigars make this chatter in ways remarkably similar to the way we do it. Researchers shared the new…

When you break a bone or scrape an elbow, your body calls in healing cells. That S.O.S. takes the form of an electrical signal. A new gel that oozes like…

Fishing is a way of life for people who live on the floating villages of Cambodia’s Tonle Sap Lake. These Southeast Asians depend on fish that migrate in and out…

A little-known element is shedding light on the birthplaces of enslaved Africans sent to other continents. From the 1400s to the 1800s, more than 12 million Africans were sold into…