Summary: Humans have vestigial ear muscles that once helped our ancestors focus on sounds. New research shows these muscles still activate when we strain to hear in noisy environments. Scientists used ...
Drop into Armstrong Canyon at Kachina Bridge, then hike upstream to Owachomo Bridge ... On the eastern skyline you can see the Bears Ears, two buttes that are a well-known landmark. After a couple ...
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Gaps in the trees afford occasional glimpses of the San Francisco Peaks, but it’s not until you reach the junction with old Freidlein Prairie Road/Kachina Trail that views open up to the north (around ...
Some people experience fluttering sounds in the ears that come and go, while others may hear a continuous sound. Causes include tinnitus, dysfunction of tissues in the ear, and high blood pressure.
It often uses old structures (or ancient genes) for new jobs. The mammalian ear is a perfect example. Over the eons, the jawbones of our fish ancestors became three separate small bones that ...
OTTAWA — Donald Trump’s return to the White House on Monday has already proven to be a thorn in the side of Canadian officials, but his second presidency brings additional baggage for Canada ...