@[email protected] to Today I [email protected]English • 6 months agoTIL humans are the only animal with a chin. We aren't sure why.www.smithsonianmag.commessage-square149fedilinkarrow-up1488cross-posted to: [email protected][email protected]
arrow-up1488external-linkTIL humans are the only animal with a chin. We aren't sure why.www.smithsonianmag.com@[email protected] to Today I [email protected]English • 6 months agomessage-square149fedilinkcross-posted to: [email protected][email protected]