An ancient circular fortress in the Sahara still puzzles historians
Built in the dunes near Timimoun, Algeria, Ksar Draa is one of the Sahara's most mysterious ruins. Historians still don't know exactly who built it, when it was constructed, or what its original purpose was
We tend to oversimplify explanations in biology. But life teaches otherwise. This message and others comprise one of the best podcast episodes on holobiont biology with @markowenmartin interviewing the brilliant Dr. Kevin Kohl, once postdoc in the B lab. https://t.co/QbFd0rxO1a