Scientists reopened an underwater cave sealed for 40,000 years and immediately knew something was off. The ancient chamber, hidden beneath the depths, had remained untouched since the Ice Age.
In 2007, cave divers mapping underwater tunnels near Tulum, Mexico, found a large submerged chamber they named Hoyo Negro. The room, about 100 feet deep, contained scattered animal bones and a nearly complete human skeleton. The discovery led to years of research by the Mexican National Institute of Anthropology and History (INAH) and a team of international scientists.The human remains belonged t…
An ancient blue hole off Mexico’s Yucatán Peninsula, sealed for thousands of years since the last ice age, is now giving up its secrets—but scientists are more puzzled than ever. The underwater cave, known as Taam Ja’, once held water isolated from the outside world, creating a pristine time capsule of prehistoric life.
Divers exploring the submerged cave systems of Mexico’s Yucatán Peninsula have recovered at least 11 prehistoric human skeletons over the past three decades, along with a large deposit of Ice Age animal bones. The discoveries have reshaped scientific understanding of when humans first reached the Americas, though several key questions remain unresolved.The Yucatán Peninsula sits on a vast slab of…
Mexico City is sinking fast, and the ground beneath 22 million people is collapsing. The metropolis extracts so much groundwater from the soft clay lakebed underneath that parts of the city are dropping about 20 inches a year.
In 2003, a fisherman in Chetumal Bay, Mexico, noticed a grouper disappear beneath the surface and later found a hidden opening in the water. More than a decade later, his son guided researchers back to the site. Initial measurements found no bottom at 425 feet, and instruments recorded warm, salty water and rising currents where they were not expected. The hole, known as Taam Ja’, has since been m…
In an underwater robot entered Jacob’s Well, the footage left scientists terrified. The famous Texas spring, a seemingly calm pool of clear water, hides a deep, unexplored cave system below.
Jacob’s Well is a natural spring in Hays County, Texas, near Wimberley. It is the headwaters of Cypress Creek, where water from the Trinity Aquifer rises through an opening about 12 feet wide in the creek bed. The spring normally releases roughly 2 million gallons of water per day at a constant 68 degrees Fahrenheit.The site is a karst system, a landscape formed by limestone that dissolves over ti…