The lions’ teeth were damaged during their lifetimes. Study co-author Thomas Gnoske found thousands of hairs embedded in the exposed cavities of the broken teeth. Disclaimer: AAAS and EurekAlert!

If we’re lucky in the Opinion section, we work through our beliefs completely and support them with great arguments.

It appears Robert Whittaker spoke about his vulnerable jaw just before his ill-fated fight against Khamzat Chimaev last weekend.