Note ; These snakes are both scariest and venomous animals. Some of them have extremely high toxic venoms which can stun and even kill their prey at once. They’re not only largest in size but also longest in length.Black Mamba
Inhabiting in the areas of open woodlands, open savannahs, and rocky outcrops of Uganda, Zambia, Zimbabwe, Angola, South Africa, Kenya, Botswana, Ethiopia, Malawi, Uganda, Mozambique and Namibia, Black Mamba (Dendroaspis polylepis) has long been known as the longest venomous snake in Africa and the second longest dangerous snake in the world. Their adults can reach to an average length of 2.5 meters or 8.2 feet and some of them can even grow to a length up to 4.3 meters or 14 feet.
Even though it’s called “Black Mamba”, its entire body isn’t all in black; the name is particularly given for its inky black mouth. It may be in the color of metal, olive green, dark olive, grey brown and you can see a light band around the body of some of their species. Normally, their skin becomes to darken when they age. They rely upon external heat to regulate their body temperature just like other extant reptiles.
Black Mambas move extremely fast, that is, up to 19.5km/h or 12mph. No wonder, they’re regarded as the fastest snake in the world.Vipera Berus
Dwelling in most of the Western Europe to as far as the Far East Asia, vipera berus, a type of venomous viper species, enjoys basking its thick body in dry sunny places. Even though its bite is extremely painful, it’s rarely fatal. Its adult can grow up to 60 cm in length with the largest ever found in Sweden with a length over 90 cm and the other one observed in France and Great Britain was said to achieve a maximum size of 80 to 87cm.Agkistrodon Piscivorus
Discovered mainly in shallow and slow-moving lakes and streams, Agkistrodon piscivorus is a semi-aquatic viper which is primarily found in the eastern United States. Since it’s a venomous snake its bite can be potentially fatal. It feeds on fish and frogs, and it’s a good swimmer that is always observed successfully colonizing islands of both Gulf and Atlantic coasts.Crotalus Oreganus
Oxyuranus scutellatus is an extremely dangerous largest venomous snake dwelling primarily in tropical regions of the Northern Territory, including Melville and Bathurst Islands, and the West Kimberley’s of Western Australia and it’s also seen along the coast and nearby areas of Queensland. It’s said that one single Oxyuranus scutellatus bite can kill up to 12,000 guinea pigs. It’s characterized by its larger fangs, orange-brown iris, and light to dark brown above its body with paler sides. Its highly toxic venoms from the bite can result in vomiting, abdominal pain, dizziness, nausea, and headache. Often, the poison from its bite causes blurred vision accompanyied by convulsions, and in severe cases, one may become coma after being attacked by an Oxyuranus scutellatus. The bite too, can sometimes cause death.