The eastern water dragon is a medium to large sized lizard, with some specimens growing up to 80cm in length including their long tail. Eastern water dragons have large heads, with a row of spines beginning on the head and leading down along their back.
Eastern water dragons are semi-aquatic lizards that are found along the east coast of Australia. They are normally found around creeks, rivers or lakes. The lizards can remain submerged for up to 30 minutes and rise to the surface where they are able to breathe, while checking the area for danger before emerging back onto land.
Eastern water dragons are active during both the day and night time. During this period of activity they hunt for insects, frogs, yabbies, water insects, fruit and berries. Eastern water dragons are active all year, but in the cooler parts of their range, they will experience a dormancy period. The dragons may then dig a small hole under a log or rock, they then will seal the entrance, and emerge in the warmer months.
Eastern water dragons breeding season is during spring. Mating occurs near waterways, where the males defend their territories. The females lay eggs away from the river in nests. Through November and December females lay their eggs in nests set away from the water. Female dragons can lay between 10-20 eggs with young hatching in January and February.