tusks

African elephants face threats from poachers, with thousands of them illegally killed each year for their tusks.

Mammoth teeth and tusks are among the items discovered on a new dig at a site that inspired a Sir David Attenborough documentary.

They have been found alongside shoulder bones and two partial tusks, one from a small mammoth and one much larger.

The non-destructive technology, which involves shining a high-energy light at an ivory specimen, can detect small biochemical differences in the tusks from elephants and mammoths.

Researchers scanned samples of mammoth and elephant tusks from London's Natural History Museum using the laser based method, Raman spectroscopy.