3D bioprinter to print human meniscus on the space station

The knee is not only one of the largest and most complex joints in the body—it is also easily injured. In fact, one of the most common orthopedic injuries is the tearing of the meniscus, a half-moon-shaped piece of cartilage ...

How birds got their wings

Modern birds capable of flight all have a specialized wing structure called the propatagium without which they could not fly. The evolutionary origin of this structure has remained a mystery, but new research suggests it ...

Paleontology: No supersonic boom for dinosaur tails

Diplodocids—large herbivorous dinosaurs with long necks and tails—may have been able to move their tails like bullwhips at speeds of up to 33 meters per second (more than 100 kilometers per hour), according to a modeling ...

Dinosaur 'mummies' might not be as unusual as we think

A process of desiccation and deflation explains why dinosaur "mummies" aren't as exceptional as we might expect, according to a study published October 12, 2022 in the open-access journal PLOS ONE by Stephanie Drumheller ...

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