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Lab-grown brain ‘organoids’ set longevity record
A stack of lab dishes containing lab-grown human brain organoids

Lab-grown brain ‘organoids’ set longevity record

In a new milestone for stem cell research, Harvard neuroscientists have set a record for keeping alive lab-grown human brain “organoids” and proven that they mimic key developmental stages seen in living people.

Where undergrads grow into scientists
Tom Weber and mentor Laura Ostrowsky in a bucket lift at Harvard Forest

Where undergrads grow into scientists

Deep in the woods of Petersham, Mass., the Harvard Forest Summer Research Program in Ecology is cultivating a renewable resource — future generations of scientists.

Octopus cells pack ‘real surprise’ for biologists
A California two-spot octopus waving its arms

Octopus cells pack ‘real surprise’ for biologists

Harvard biologists have discovered a mysterious distinction at the core of the octopus‘ cellular biology that appears to be unique in the animal kingdom.

Bigger benefits for kindergarten’s oldest boys uncovered
A child wearing a backpack boarding a school bus

Bigger benefits for kindergarten’s oldest boys uncovered

Being born a few days on either side of the school-enrollment cutoff date might seem like an arbitrary difference. But new research finds boys born just after the cutoff, who start kindergarten relatively old for their grade, enjoy far more advantages than previously known.

How a giant predator of prehistoric seas was discovered — twice
Museum of Comparative Zoology collections manager Christina Byrd, at left, and MCZ fossil preparator Scott Johnston pose with a Tylosaurus proriger fossil jaw.

How a giant predator of prehistoric seas was discovered — twice

After 80 million years, a giant fossil jaw has quite a story to tell. Back in the age of the dinosaurs, Tylosaurus proriger was a fearsome predator — a bus-sized aquatic reptile with a crushing snout, daggerlike teeth, and knack for swallowing prey whole. How its bones wound up at Harvard is a tangled yarn involving a Wild West stagecoach station, the early western railroads, the infamous “Bone Wars” between rival fossil hunters, and a founding scholar of natural history.