But researchers this year came up with a new method that makes flexible, realistic ears out of real cells. Those cells come from rats and cows, and they form a collagen gel that can take the shape of any mold. When placed in a mold of a human ear—a mold assembled using a 3-D printer—the gel forms an ear in less than an hour. The artificial ear then just needs a few days growing in nutrients before it's ready to be implanted in a subject.
Your gym membership can wait.
Single record of the year: "Over You," Miranda Lambert
We asked FlightAware to look at arrival delays, rather than departure delays, because it is sometimes possible for airlines to make up time lost on the ground while the plane is in the sky.