Re the sketched reptiles (seen at the museum): Green tree pythons (Morelia viridis) occur in rainforests on Cape York Peninsula, and also in New Guinea and Indonesia. Juveniles are bright yellow but change to emerald green as adults, coinciding with a shift in diet from ground-dwelling skinks to mammals. Primarily arboreal, M. viridis has a particular way of resting in the branches of trees; it loops a coil or two over the branches in a saddle position and places its head in the middle.
The perentie (Varanus giganteus) is Australia’s largest lizard, growing up to 2.5 metres (over 8 feet) long. Perenties are powerful diggers and shelter in extensive, complex burrows when they are not out and about hunting prey. They feed on reptiles (including their own species), small mammals such as bats, young kangaroos & other small marsupials, and rodents. Prey is typically swallowed whole, but if the animal is too large, chunks are ripped off for ease of consumption. Coastal and island individuals may eat a large number of sea turtle eggs and hatchlings, and hide under vehicles to ambush scavenging gulls. Wily!