where bones of giant ground sloths show signs of being manipulated by humans. Sloths like these once lived from Alaska to Argentina, and some species had bony structures on their backs ...

The discovery of giant sloth bones from animals that weighed ... During this time, 57 species of large mammals went extinct. Given that before this period, it is believed that "one species went ...

Molecular dating has shown that several extinct creatures, such as giant sloths and mammoths, survived in South America much later than previously thought, raising questions about the root causes ...

where bones of giant ground sloths show signs of being manipulated by humans. Sloths such as these once lived from Alaska to Argentina, and some species had bony structures on their backs ...

Some of the clues come from an archaeological site in central Brazil, Santa Elina, where bones of giant ground sloths show signs of being manipulated by humans. Sloths such as these once lived from ...