A nearly-complete ancient skeleton of a massive Columbian mammoth has been unearthed with a whole heap of bones at a construction site in Los Angeles.
The mega mammoth has been nicknamed Zed by researchers at the Page Museum, where the bones are being carefully cleaned up and studied.
It's a big job. There are loads of of bits of bones and giant joints that have to be carefully pieced back together.
Check out this 10-foot-long tusk and imagine how big Zed must have been!
Columbian mammoths were a type of elephant that became extinct during the last ice age, about 40,000 years ago.
By studying Zed's remains, researchers reckon he was in his late 40s when he died.
But Zed's weren't the only remains found during digging for an underground car park - hundreds of other fossils were also discovered, including this prehistoric American lion's skull!