Black Mamba, also known as Common Mamba, is considered as the longest poisonous snake in the African continent. The name does not refer to the color of its scales, but it is characteristic of the interior appearance of its mouth. They are tree-dwellers and are confined to equatorial and Southern Africa. Regarded as one of the most aggressive species of snakes in the world, they attack the victim with unbelievable speed and ferocity. Their venom can kill man within ten minutes of the bite. However, if vigorous antivenum therapy is provided to the victim immediately, their life can easily be saved. The mortality rate ranges from 75 to 100 percent. Black mamba is the most dangerous creature on our planet Earth. Before the availability of antivenum medications, there were no chances of survival from the deadly bite of the snake, that is why, it is also known as “the kiss of death”.

Cobra—the name is as scary as its physical appearance. The forest cobras are found in two different species, namely, black cobra and black-lipped or white-lipped cobra. They grow up to 2.7 m in size and can easily be found in and around Ivory Coast, Ghana, Nigeria, Cameroon, Gabon, Congo and few other similar places where there are thick forests. The forest cobras like to live in forests, woodlands, grassy areas and humid places that are almost 2500 m above the sea level. When it comes to their diet, they like to have fishes, other snakes, lizards, eggs of various birds, rodents and many other tiny mammals. The cobras can easily climb trees and they are also known as good swimmers. They are active equally in the day and night. When cobras are in the state of rest, they like to hide themselves in holes, underground burrows and the places like that.

In India the genus Daboia is represented by the single species of snakes, commonly known as the Russell's viper. In binomial nomenclature, it is termed as Daboia russelii where second part of the name refers to the only surviving species of the genus. It can kill 150 people with one bite and its mortality rate ranges from 40 to 92 percent. Russell's viper is found in Asian continent, particularly in India, southern China, Taiwan, and some other parts of South Asia. Because of its deadly bite with high mortality rate, it is considered as the third most dangerous snake in the world. It is a very handsome snake, being pale brown in colour with black bands edged with white or gold. It is nocturnal and preys on rodents and even pursues rats and mice into houses. In the populations of Russel's Viper that dwell on Asian mainland areas, an individual snake may reach up to the length of five and a half foot, but this may not be the case with island populations as they are comparatively shorter.

Taipans are known as the deadliest and most poisonous snakes ever. They can be easily found in hot areas of Australia, especially, in the north regions. There are almost thirty various kinds of dangerous and poisonous snakes in Australia and among these the largest and the most noxious one is the Taipan. It is also known as the Inland Taipan that was previously named as The Fierce Snake. This type of snake can very easily kill hundreds and hundreds of animals and almost hundred humans with its poison that comes from one bite. When it attacks anyone, the poison straightaway starts destroying the tissues of the victim and thus leaving very little or no chance for the victim to be cured. It may not cause death of the victim on the spot but, afterwards, when the poison gets penetrated into the body and damages different systems like nervous system, tissues and other organs.

Another name for common kraits is Indian or blue kraits. It implies from its name that these kinds of snakes can be very easily found in India and the surroundings. Concerning their habitat, they like to rest in jungles, small holes, termite homes, holes of rats and the places like that. In their diet, these snakes want to consume other types of snakes, blind worms, lizards, frogs, rats and mites. They also like to feed on certain other tiny mammals. The kraits are highly active at nights and remain in their underground homes during the day time. This snake is also very poisonous and can damage muscles of its victims, a condition that can lead to muscle paralysis. Moreover, its poison contains substances that are very harmful for brain and nerves as well. Since, kraits are active at nights; they are hardly harmful for humans in the day time. All the attacks on humans must be made at nights.

Jararacussu is another poisonous snake that can be easily found in Brazil, Paraguay, Bolivia, Argentina and surroundings. It is commonly known as Bothrops Jararacussu. As a matter of fact, the Bothrops Jararacussu is one of the top 10 most dangerous snakes in the world. While these snakes are active, you would always find them hanging from the trees in any thick forest in Brazil and the places already mentioned. The lower side of its body has a yellow color while it is covered with yellow stripes from the above. It is extremely poisonous and contains almost 800 mg of poison in one bite. This much amount of poison is enough to kill 30 plus people at a time. It is no wonder that people are scared of these snakes, as they are so deadly. While visiting any forest in Brazil and other places, one should be very careful of these poisonous and dangerous snakes to avoid all sorts of unfortunate incidents.

Terciopelo is scientifically known as Bothrops asper and Fer-de-lance is one of its common names. These types of snakes are found in South America, Venezuela, Trinidad and Mexico. They prefer to live in tropical areas such as rainforests, evergreen forests, and the borders of savannas. Moreover, they can be found in places such as lower hilly areas, dry parts of tropical forests and the famous cloud forest in Mexico. They like places where the humidity level is pretty high to prevent dehydration. They are found in places that are close to the sea and are not higher than 2640 m from the sea level. Most of these are purely terrestrial but some of them may be found climbing the trees. Coming to the feed, the Terciopelos eat mammals, amphibians, rodents and reptiles. Moreover, they like to have tiny lizards, insects, birds, rabbits, frogs and geckos.

The Egyptian Cobra is also known as Egyptian Banded Cobra. These snakes are very large, that is, almost 8 feet in length. They are found in multi colors, such as, yellow and gray with a blend of brown color in both of their types. These cobras like to live in hot and dry places and thus can be abundantly found in Africa. These snakes are extremely active and are capable of moving very fast. Also, these are commonly known as highly intelligent cobra species. They are very dangerous to humans as the injection of their poison can lead to sudden death of the victim, if not managed quickly and properly. Inactive during the day time, they go in search of food at nights, though you can see them during the day as well. The very famous and widely known enemies of these cobras are raptors and mongooses.

Indian Cobra is found in Pakistan, India, Sri Lanka and Bangladesh and grows to a length of about six feet. There is undoubtedly some justification about Cobra's notoriety, as it is responsible for about a quarter of the snake-bite deaths recorded in India in the past some years. Its mortality rate ranges from 30 to 35 percent, but if proper treatment is not available, the victim is sure to die. It is among the Big Four of India which means it causes most of the deaths in India. A cobra preparing to attack first erects the front part of the body, at the same time flattening the neck. The Cobra's characteristic marking, which is like a pair of spectacles, appears on the neck as it is flattened. It is because it gives good warning that snake–chambers can handle it easily. Similarly when attacked by mongoose, the Cobra is at disadvantage because it cannot cope with the quick and instinctive action of this small mammal. In general the Indian Cobra is not aggressive and, if you do not disturb, it will move away silently.

Jararaca snakes are scientifically known as Bothrops Jararaca. Some people name them as Yarara. These are very poisonous and are heavily found in Brazil, Paraguay and in the north of Argentina. They like to live in grassy areas and are mostly found near sea on the land that is up to 1000 m high above the sea level. The venom of this deadly creature can cause sudden death of the victim. Scientifically, these animals are categorized under the Kingdom Animalia, Phylum Chordata, Class Reptilia, Family Viperidae, Genus Bothrops and Species B. jaraca. Concerning their food, they like to eat small birds and tiny mammals. The female jararaca mostly gives birth to 20 baby snakes, at a time. These snakes are found, in abundance, in the grassy areas, tropical forests, semitropical lands and farm areas of Brazil.