The Eastern Brown Snake is native to eastern and Central Australia. It is considered to be the second most venomous snake in the world after the inland Taipan. Although always brown, the Eastern Brown Snake can vary in the intensity of colour with some snakes being very pale. You can see colour differences in the photos on this page and both these snakes were photographed within 10km of each other.
The eastern brown snake is of slender to average build with no demarcation between its head and neck. Its snout appears rounded when viewed from above. Most specimens have a total length (including tail) up to 1.5 m (4.9 ft), with some large individuals reaching 2 m (6.6 ft). The maximum recorded total length for the species is 2.4 m (7.9 ft). Evidence indicates that snakes from the northern populations tend to be larger than those from southern populations. The adult eastern brown snake is variable in colour.
The eastern brown snake occupies a varied range of habitats from dry sclerophyll forests (eucalypt forests) and heaths of coastal ranges, through to savannah woodlands, inner grasslands, and arid scrublands and farmland, as well as drier areas that are intermittently flooded. It is more common in open habitat and also farmland and the outskirts of urban areas. It is not found in rainforests or other wet areas. Because of their mainly rodent diet, they can often be found near houses and farms. Such areas also provide shelter in the form of rubbish and other cover; the snakes use sheets of corrugated iron or buildings as hiding spots, as well as large rocks, burrows, and cracks in the ground.
The eastern brown snake is generally solitary, with females and younger males avoiding adult males. It is active during the day, though it may retire in the heat of hot days to come out again in the late afternoon. It is most active in spring, the males venturing out earlier in the season than females, and is sometimes active on warm winter days. Individuals have been recorded basking on days with temperatures as low as 14 °C (57 °F). Occasional nocturnal activity has been reported.