PBS Eons: Why Were Sails So Popular 300 Million Years Ago #fossils #paleontology #evolution #dimetrodon #Carboniferous #pennsulvanian

https://youtu.be/IXU43nvmDkE PBS Eons has a new video. This one is about a time when…

https://esconi.org/2026/09/pbs-eons-why-were-so-popular-300-million-years-ago/