The most powerful poisonous snakes in the world are Taipan, Black Mamba, Papuan Taipan, Brown Yiao and Duchenne's sword-tailed sea snake.

1. Taipan snake

Taipan snake, commonly known as inland Taipan snake, is a highly toxic terrestrial snake species all over the world. Taipan snake has a flat head, relatively large eyes, gray to yellowish brown scales, brown or olive green trunk, and black head or black stripes. Its character is gentle, if you don't catch them, you won't be easily angered.

2. Black mamba snake

Black mamba snake, also known as "Black Tree Cobra", is the second largest land poisonous snake, the fastest attacking snake, which can reach the speed of 19 km/h, and the largest mamba snake, and is called "African Death". The black mamba snake is slender, generally more than 2 meters long, and the longest record can reach 4.5 meters. Its head is rectangular, its body color is grayish brown, and it gradually becomes shallower from its back to its abdomen.

3. Papuantaipan snake

Papuantaipan snake is 17-25 cm long and distributed in new guinea, Papua. The length is 17-25 cm, and the length of fangs is 7.-13. mm. The Papua Taipan snake is shy, but it is no less dangerous than the other two Taipan snakes. When threatened, it will also raise its first half height and give a fatal blow to its opponent.

4. Brown Yiao snake

Brown Yiao snake is the most widely distributed poisonous snake in Australia. This species has also been found in southern New Guinea, but according to recent research, these snakes may be another new species. The brown Australian snake is highly toxic, ranking among the top three poisonous snakes in the world. Once threatened, the brown Yiao snake will flatten the narrow neck skin fold and raise the front of its body before launching an attack.

5, Duchenne sword-tailed sea snake

Duchenne sword-tailed sea snake is a highly toxic sword-tailed sea snake, mainly distributed in Papua New Guinea. New Caledonia and Australia's northern, eastern and western coastal areas extend westward to the Coral Sea, the Arafura Sea, the Timor Sea and the Indian Ocean. The Duchenne sword-tailed sea snake is the most poisonous sea snake and one of the most poisonous snakes in the world.