Lungs | smithsonianmag.comhttps://www.smithsonianmag.com/rss/tag/lungs/RSS feed for LungsenMon, 13 Apr 2026 20:06:58 +0000This Nearly 300-Million-Year-Old Mummified Reptile Reveals the Evolutionary Origins of How We Breathehttps://www.smithsonianmag.com/smart-news/this-300-million-year-old-mummified-fossil-reveals-the-origins-of-breathing-in-amniotes-180988521/Unusually well-preserved fossils have provided the earliest known evidence of a land vertebrate that could pump air in and out of its chest using muscles between the ribs—the same strategy used by modern mammals, reptiles and birdsMon, 13 Apr 2026 20:06:58 +0000https://www.smithsonianmag.com/smart-news/this-300-million-year-old-mummified-fossil-reveals-the-origins-of-breathing-in-amniotes-180988521/