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Doctors Transplant 3-D Printed Ear Made of Human Cells

3DBio Therapeutics, a biotech company in Queens, said it had for the first time used 3-D printing to make a body part with a patient’s own cells.

A 4-year-old in Ohio is one of hundreds of children worldwide who have developed unexplained liver problems in recent months.

The species is called Poseidon’s ribbon weed, and researchers say it has spread to cover an area the size of Cincinnati over the past 4,500 years.

Last year, people 65 and older died from Covid at lower rates than in previous waves. But with Omicron and waning immunity, death rates rose again.

The largest shark that ever lived may have vanished in part because the comparatively smaller great white had a taste for the same prey.