AUSTRALIA: In some cultures, insects are an important dietary source of protein, fat, and vitamins. Europeans who first settled Australia in the 19th century recorded how Aboriginal groups gathered annually in the Australian Alps to collect large numbers of migratory bogong moths. Moth residue on a recently excavated grinding tool from Cloggs Cave shows that this practice dates back at least 2,000 years. Researchers believe the tool was used to process the insects into cakes that could be smoked and preserved for weeks.