Smithsonian Magazine on MSN2d
Explore Rome's Hidden Underworld, Where a City Lurks Beneath a City
Watch out for that bat behind you,” warned Luca Messina, a civil engineer who moonlights as a speleo-archaeologist with ...
verywellhealth6d
Black Poop: When It's Harmless and When It's Not
Black poop can be harmless, caused by certain foods or medications, or it can be a sign of melena, meaning there’s blood in your stool. Melena happens when bleeding occurs in the upper digestive tract ...