Underwater find may be one of the oldest known hunting structures

Stone Age hunter-gatherers hunted reindeer more than 10,000 years ago , a German study finds.

The wall was likely built by Stone Age communities to hunt animals.

It is the first Stone Age hunting structure found in the Baltic Sea .

Similar prehistoric hunting structures have been found elsewhere around the globe.

The Lake Huron wall’s construction and location, which includes a lakeshore to one side, is most similar to the Baltic Sea wall's.

The scientists continue their investigation in the Baltic using sonar and sounding devices.

Other undiscovered treasures at the bottom of the Baltic could potentially shed more light on ancient hunter-gatherer communities.