The monkey tail is one of nature’s most marvelous tree-top tools. Balancing their bodies as they bolt through the branches, the tail is an advantageous adaptation for monkeys. But why wasn’t the tail beneficial for our ancient ancestors, the apes? Somewhere along the evolutionary timeline, apes lost their tails, and in turn helped humans become humans.How this happened has intrigued a slew of scientists over the years, including Bo Xia, a geneticist at the Broad Institute, an independent ins ...read more
E-bikes have captured widespread attention across the U.S., and for good reason. They are the most energy-efficient way to move from place to place, providing exercise in the process, and offer enough assistance while pedaling uphill or into headwinds to make them usable for many types of riders.Greenhouse gas emissions from e-bikes are much lower than those from either gasoline-powered or electric cars. Some cities and states are encouraging the use of e-bikes by providing purchase incentives, ...read more
Many runners know the feeling well — miles of training can feel sluggish and uninspiring. Then, on race day, the course is filled with other runners as well as spectators. The steps seem to come easier and faster. Scientists have long understood that people can perform better on certain tasks when others are watching. But after COVID-19 hit, spectators disappeared from sidelines and stadiums. When events resumed without fans, scientists had an opportunity to further study the relationship bet ...read more
The total solar eclipse set to occur April 8, 2024, will dazzle everyone who views it. However, potential observers might have some questions.Where exactly in Mexico and the U.S. will totality be visible? That’s easy to answer with a detailed map, such as the one below. But which locations are the best spots to view the event? That answer is less straightforward.You’ll surely want to set up shop near the center line of the eclipse, where totality will last the longest. But what else makes fo ...read more
Vitamin and mineral supplements can be helpful for people who don’t get enough necessary micronutrients in their diets, says a 2018 position statement by the Academy of Nutrition and Dietetics. This includes some people with chronic health conditions, people who have problems absorbing nutrients, older people, and pregnant people. And almost three-quarters of Americans take nutritional supplements, according to the Council for Responsible Nutrition, a trade organization representing supplement ...read more