Spiders are air-breathing arthropods that have eight legs. They ranked seventh amongst all species diversity of all the orders of all organisms. Spiders don’t have antennae. True spiders have been found in Carboniferous rocks about 318 – 299 million years ago. Spiders use various strategies to capture their prey like sticking the prey to the web and biting with venom. Here is a list of world’s largest spiders,
1. Goliath birdeater
It belongs to the tarantula and is found in the region of Northern South America. It is the world’s largest spider in terms of mass and size. But it is second to giant Huntsman spider by leg span. It generally preys on small birds. Unlike other spiders, females do not eat males during mating. Females in 3 to 5 years and live for15 to 25 years. Males die just after maturity and live only for 3 to 6 years. Their body colour varies from dark to light brown with faint marks on the body. Female lay eggs from 100 to 200 at a time in the burrows made by them. In threatening conditions, the Goliath birdeater rub their abdomen with hind legs and release hairs which irritate the skin of the opponent.
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2. THE HUNTSMAN SPIDER
They are large long-legged spider measuring up to 15 cm across the legs. These spiders have eight eyes. They are mostly grey to brown with black coloured markings on their body. Though their vision is not Good as compared to other spiders and they could only see approaching objects which are at a closer distance to them. Huntsman spiders do not build webs instead they hunt for food. They are also called as wood spiders because they prefer a woody place to live. They live in logs, a loose branch of trees and rock walls. These spiders are notorious and sometimes enter the house and in cars. Female spiders lay up to 200 eggs at one time and guard it for 3 weeks. Generally, Huntsman spider does not come under the category of danger spider. It is one of the largest spiders in the world.
3. BRAZILIAN SALMON PINK BIRDEATER
The species is believed to be world’s third largest species of tarantula. It is a fast-growing species and spends most of their times outside playing an adult. They are uniform black coloured and once mature they have pink hair all over the body. Mature mails have tibial hooks on the front pair of legs. This hook back’s a female leg during mating. When In threatening conditions, tarantula raises its front leg and try to stop its enemy. If the attacker doesn’t stop here tarantula tries to bite. It is said that tarantula prefers biting in the last situations, else it makes use of urticating hair which if thrown in eyes causes blindness. During breeding season, males drop their sperm onto the female webbed mat. Brazilian salmon pink are very popular in captivity due to their size and appearances.
Image Source: https://commons.wikimedia.org/wiki/File:Brazilian_Salmon_Pink_Birdeater.jpg
4. POECILOTHERIA RAJAEI
This species is famous with common name Indian ornamental tree spider found in the Easter and western ghats of Indian Subcontinent. They are elongated species with legs reaching 18 cm in males and 22 cm in females. They are grey coloured spiders with a wonderful complex of black and white stripes and chevron. They show yellow bright spots of colour at the 1st pair of legs at warning time. They usually prefer to feed small flying insects, cockroaches and even small mouse. The species have venom that has medicinal uses.
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5. Sun Spider
One of the largest spiders in the world, Sun spider also famous with names camel spiders, wind scorpions, or solifuges. The largest species grow up to 5-6 inches. It belongs to solifugae an order of animal in the class Arachnida. The largest species can reach up to 12 to 15 cm in length including legs. Many urban legends have stated from their experience that size, ability and potential danger to human from Solifugae are negligible. The body of Solifugae has two tagmata – an opisthosoma and prosoma. Despite their common name they are neither categorised as spider nor scorpions. Solifugae have five legs but only four hind legs are true legs and each leg have seven segments. Solifugae have eversible adhesive organ and they use it to prey flying insects.
Image Source: https://commons.wikimedia.org/wiki/File:Sun_Spider_(Solifugae)_(16255577778).jpg
6. King baboon spider
King baboon spider is found in the east African countries like Tanzania and Kenya. King baboon is borrowing spider which lives in burrows they made on grasslands. These spiders have venom which they use to kill their prey. They feed on insects, lizards, cockroaches, birds and can even kill mice. Unlike other spiders they don’t have urticating hairs then also they can be very defensive. They are slow growing spiders that grow up to 20 cm in leg span. It is the only species from genus pelinobius. Spider ranges its colour from rusty brown to orange coloured. King Baboon spiders are preyed upon by birds, baboon and other mammals. Adult spiders can be kept in the aquarium which should contain 10-20 Gallons of water, a hidden area and shallow water dish should also be provided.
Image Source: https://commons.wikimedia.org/wiki/File:King_Red_Baboon_Spider.jpg
The tarantula can found in the regions across the earth. Tarantulakept as pets has urticating hairs that can cause irritation to skin and can damage eyes. Tarantula has a long life of 15 to 25 years. It is an invertebrate that relies on an exoskeleton for muscular support. Tarantula size varies from the size of fingernails to as large as a dinner plate. The largest species of tarantula weighs 85 gram and the largest of all Goliath eater in Brazil weighs 170 gram. Tarantula is becoming famous pets. Tarantula is borrowers that live on the ground. Their natural habitats include savanna, grasslands such as rainforest, deserts, scrubland and cloud forests.
8. BRAZILIAN WANDERING SPIDER
One of the scariest spiders, Brazillian wandering is mainly found in the regions of North America and Central America. Phoneturia is a genus of venomous spiders. The genus as a whole is sometimes called as Brazilian wandering spider because they wander in the night at jungles rather than waiting for the victim at their web. Phoneturia is also famous with names like Armed spider and banana spider. The spider in this genus can grow up to a leg span of 12 to 15 cm. To defend themselves they use to raise front two legs and characteristics Colour pattern of their body tells they are in danger. Besides the pain in their venomous bite, it also causes priapism in humans.
These are medium-sized spiders native to tropical South America. These spiders come in brown colour with pinkish or orangish-red hairs. They are regarded as beginning species from tarantula family. The Chilean Rose tarantula is a common pet due to its obedient behaviour and its venom being mild. They try to keep themselves dry because they hate being getting dried. It feeds on small invertebrate insects.
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A species which belongs to Huntsman spider and can be found in Israel and Jordan. Spider has a leg span of 14 cm which is the largest member of sparaissade In middle East Asia and hence listed as one of the largest spiders in the world. Female are generally bigger in size than males. Males have a body length of 1.85 cm to 2.40 cm while females have a body length of 2.20 cm to 2.65 cm. At night and in hotter summers it is a more active spider. It constructs underground dens with trap-like door and put sand and glue over it in order to make the door disguise from predators.
Image Source: https://commons.wikimedia.org/wiki/File:Cerbalus_aravaensis.JPG
These are the largest spiders in the world. Do post your comments.