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New research suggests humans lived in South America at the same time as now extinct giant sloths, bolstering evidence that people arrived in the Americas earlier than once thought.

The first gene therapy for a deadly form of muscular dystrophy received preliminary U.S. approval on Thursday despite concerns from some government scientists about the treatment’s ability to help boys with the inherited disease.

In this Educator Voices article, professor John Moore describes a "backwards" approach to teaching energy use in cells that traces the process from ATP in use back through glycolysis. 

In this Click & Learn, students explore the process of digestion and how it connects to metabolism and cellular respiration. 

In this Click & Learn, students explore factors that contribute to patterns seen in the Keeling Curve: a continuous record of atmospheric CO₂ starting in 1958.

Scientists who tracked humpback whales in Australia noticed that fewer whales wailed to find mates as their population grew.

As Latinos age in the Rio Grande Valley, the border region is experiencing a surge of dementia-related disease – pushing scientists to find out why.

A new study that analyzes data from more than 50,000 amateur stargazers finds that artificial lighting is making the night sky about 10% brighter each year.

Scientists have uncovered new clues about a curious fossil site in Nevada, a graveyard for dozens of giant marine reptiles.

Scientists discovered the oldest known DNA and used it to reveal what life was like 2 million years ago in the northern tip of Greenland.

Our Medieval ancestors left us with a biological legacy: Genes that may have helped them survive the Black Death make us more susceptible to certain diseases today.

A new study finds that some people really are “mosquito magnets” and it probably has to do with the way they smell.