This amazing image was taken inside the Waitomo Glowworm caves in Waikato, New Zealand. The caves are famous for their abundant glowworms, which are the larval form of a gnat species (Arachnocampa luminosa) that’s unique to New Zealand. The larval worms glow to attract prey into the silky threads they weave from the roof of the cave – the hungrier they are, the brighter they glow.