Eastern brown snake
The eastern brown snake is a highly venomous snake of the family Elapidae. It is native to eastern and central Australia and southern New Guinea. The snake is considered to be a least-concern species according to the International Union for Conservation of Nature. It has become more common in farmland and on the outskirts of urban areas.
About Eastern brown snake in brief
The eastern brown snake is a highly venomous snake of the family Elapidae. It is native to eastern and central Australia and southern New Guinea. It was first described by André Marie Constant Duméril in 1854. The snake is considered to be a least-concern species according to the International Union for Conservation of Nature. It has become more common in farmland and on the outskirts of urban areas, benefiting from the increased numbers of its main prey, the introduced house mouse. Its venom’s main effects are on the circulatory system—coagulopathy, haemorrhage, cardiovascular collapse, and cardiac arrest. One of the main components of the venom is the prothrombinase complex pseutarin-C, which breaks down prothrosbin. A 2008 study of mitochondrial DNA across its range showed three broad lineages: a southeastern clade from South Australia, southeastern Victoria and coastal New Wales; northeastern South Wales and northern New South Wales; and a northern clade of clades from a northern and western clade. The species is oviparous and has the largest number of diploid chromosomes at 38; those of the other species range from 30 to 36. Its underside is pale cream-yellow, often with orange or grey splotches. It can grow up to 2 m long and is found in most habitats except dense forests. It’s considered the world’s second-most venomous land snake after the inland taipan, based on its LD50 value in mice, and it is responsible for about 60% of snake-bite deaths in Australia.
The snakes were moved from DiemeniaDemansia to Pseudonaja by Australian naturalist Eric Worrell in 1961 on the basis of skull morphology, and upheld by American herpetologist Samuel Booker McDowell in 1967. In 2002, Australian author Richard W. Wells split the genus Pseud onaja into Pseudonaia and Euprepiosoma, though this has not been recognized by other authors, and Wells has been strongly criticized for a lack of rigour in his research. The brown snakes are found in Australia, New Guinea, Tasmania, South Africa, and Papua New Guinea and are thought to be of some conservation concern in New Zealand. The eastern brown snakes can grow to 2m long with a slender build. They can be several shades of brown, ranging from pale brown to almost black, while its underside is Pale brown to cream- yellow, with orange and grey splots. They are ovipara, meaning they are not sexually mature and can mate for life. They have a wide range of sexual dimorphism, with females giving birth to more than one baby at a time. The female can give birth to multiple babies at once, and the male can have several generations of offspring. The eggs are laid in a series of different lives, with the female giving birth in different locations around the world.