It's not the tiny iron balls in their ears. "It's very strange to just have a ball of iron sitting in there." By JAMES GAINES | INSIDE SCIENCE . November 21, 2021, 8:08 AM. 1:17.

On "probably the most exciting day" of David Keays' life, his research team found microscopic iron balls in the thinly sliced neurons of a pigeon's inner ear. For four years, Keays' team had been ...

The fact that these iron "balls" are in the inner ear is fascinating, and it'll be exciting if they turn out to be involved in sensing magnetic fields, said Dickman, who wasn't in involved in this ...

When iron balls are dropped into a pool with water, usually iron balls will not sink at a stroke by receiving the power of water resistance, and will fall to the bottom at a certain speed. However ...