A woman from northern Germany is hoping for advice from German criminal biologist Mark Benecke and his Facebook community. Some suspect that a green woodpecker may be searching for food behind the mysterious holes in the sand.
Others, however, bring antlions into play. However, a majority of Facebook users agree that they could be sand bees. The plush insects are mainly visible from the end of March to the end of May and from the beginning of July to the beginning of September, according to the German National Museum of Natural History and Museum of Nature and Science. The mother suspects that crickets could be responsible for the strange holes in her garden, but is stumped by the cause of the holes. A walker in the forest made a horrifying discovery. A group of Nordic walkers walked through there,' jokes another user.