Species of Wonambi were constrictor snakes unrelated to Australian pythons.

It is cognate with the genus Yurlunggur, found at Riversleigh in Queensland and in the Northern Territory.

[2][3] It was a non-venomous, constrictor snake, and may have been an ambush predator that killed its prey by constriction.

[4] It is believed they would have dwelt in natural sun-traps beside local waterholes, where they would ambush kangaroo, wallaby and other prey coming to the water to drink.

Mapping such locations in Western Australia, has been found to be closely associated with areas the Noongar people regard as Waugal sacred sites.