These lizards are usually solitary, but do not avoid others and often meet up during the year. However, they sort themselves into couples at the approach of the mating season (September to November). Initially they just go about together, but closer to the time of mating, the male follows the female around for a couple of weeks and lookout any unattached male in their vicinity, as they are chased off very smartly, however other roving couples are not met with the same aggression. This may be because they only have one partner per season, although the same pair may get together for several years. One couple has been recorded in a ten year relationship, the longest known for any reptile. From two to six young are born live, five months after mating and are independent from birth, although strangely, close family members can apparently recognise each other even after long separation.
Despite their large size and somewhat clumsy appearance, they can be a very attractive lizard, with large soft eyes that can wink at you with their moveable lower eye-lid.
They are often found within low flowering plants, no doubt sampling the produce.
Predation from native species are largely restricted to juvenile animals and tend to be from birds like kookaburras, birds of prey and large snakes. However most are preyed upon, or simply killed by cats, foxes and dogs, plus a heavy toll is taken on the roads as they slowly cross or sun-bake.
From the perspective of the lizard's prey, at this level they can look like a very big snake.