The five-line slippery-tailed scorpion, also known as the Israeli golden scorpion or death scorpion, is a highly venomous scorpion that lives in North Africa and the Middle East. The body length is usually between 7 and 8cm, and the body color is yellowish brown or dark brown. The venom contains a strong neurotoxin that is potentially deadly to humans. The habitat is mostly dry desert areas, often digging caves under rocks or in sand dunes. Predators are mainly other insects and small invertebrates. Due to the strong toxicity of its venom, the five-line smooth-tailed scorpion is considered one of the most toxic species in the scorpion kingdom.

The emperor scorpion, also known as the African emperor scorpion or overlord scorpion, is one of the largest scorpions in the world, with a body length of up to 20cm. It is dark black and has strong chelicerae and red tail spines. This species of scorpion is found mainly in the rainforests of central and western Africa. It is a nocturnal animal that feeds on insects and other small arthropods. Although the venom is not a deadly threat to humans, it has a certain degree of defense. It grows slowly and needs to be grown by multiple shelling. Due to habitat destruction and illegal capture, the field population of the emperor scorpion is threatened and has been listed in the Convention on International Trade in Endangered Species of Wild Fauna and Flora.

The emperor scorpion is a scorpion in the family Scorpaenidae, also known as the true emperor scorpion or the African emperor scorpion. The body is black, with strong tactile limbs (with significant granular texture) and a caudal segment. The emperor scorpion is mainly distributed in central and southern Africa, including the Democratic Republic of Congo, Senegal, Sudan, Tanzania, Liberia, and other places. They mostly inhabit hot and humid forests, hiding under logs or rocks, in caves, and prefer to live in fallen leaves, forest debris, riverbanks, and termite nests. Usually preys on insects such as termites and other arthropods, occasionally preys on small vertebrates. The Emperor Scorpion is the largest scorpion in the world.

Giant scorpions are a type of scorpion from the Carboniferous period, with a body length exceeding one foot. They evolved from sea scorpions and can grow up to 1-3 meters in length. They are very similar to modern scorpions, with huge pincers and tail spines. Giant scorpions feed on giant spiders and arthropods. They should first use their tail spines to kill their prey, and then use their huge pincers to tear them apart. Later, it became extinct due to insufficient oxygen.