Some of the most mysterious ancient artifacts ever discovered were found in the US. Deep beneath the soil of North America lies a ... this perfectly circular structure known as the Miami Circle ...

This dripping has created a funnel-like structure concentrated over the Midwest of the United States, horizontally pulling the ancient rocks ... model for North America. This computer model ...

A pile of ancient human feces found alongside the weapons cache ... Additionally, a folded hide from a pronghorn, North America’s fastest land mammal, reveals the hunting preferences and skills ...

Scientists have discovered that a tooth found near Old Crow, Yukon, in 2018 belonged to the oldest known woolly mammoth in North America ... track the movements of ancient mammoths from hundreds ...

The 6,500-year-old weapons, found in a cave near Marfa, could be among the oldest near-complete set of wood and stone hunting tools found in North America ... ways in which ancient humans hunted ...

This ancient slab may be weakening the overlying lithosphere, making it prone to dripping into the mantle. Researchers found that these drip-like structures extend about 640 kilometres (400 miles ...

(Representational) A chunk of ancient oceanic crust buried deep beneath the Midwest is pulling parts of North America's crust down into the Earth's mantle, scientists have found. The finding ...