It’s a warm January summer afternoon, and as I traverse the flower-strewn western slopes of Australia’s highest mountain, Mount Kosciuszko, I am on the lookout for a tell-tale river of boulders that winds its way down into the alpine valleys below.
Here, hidden in cave-like hollows and crevices formed deep within the river of boulders, is one of the most spectacular natural phenomena in the insect world – the summer mass gathering of an iconic Australian insect, the bogong moth (Agrotis infusa).
