News about woolly mammoths

Mammoths became isolated on Wrangel Island around 10,000 years ago due to rising sea levels and survived as a small population for thousands of years. Inbreeding is a common problem in small populations and its negative effects could accumulate over time, eventually leading to an unviable population and extinction.

Woolly mammoths roamed parts of Earth's northern hemisphere for at least half a million years. They were still in their heyday 20,000 years ago but within 10,000 years they were reduced to isolated populations off the coasts of Siberia and Alaska. By 4,000 years ago they were gone.