Complex sentence: The Cairns Birdwing ("Ornithoptera euphorion") is Australia's largest endemic butterfly species, with females reaching a wingspan of up to 16 cm. Males are usually a few centimeters smaller.
Split into simpler sentences: The Cairns Birdwing ("Ornithoptera euphorion") is Australia's largest endemic butterfly species. Females have a wingspan reaching of up to 16 cm, males are usually a few centimeters smaller.