Spiders derive in all shapes and sizes , from tiny , intelligentjumping spider , to the extremely deadly and chonkyHercules . Giant mythologic spiders have been depicted clip and time again throughout story – most recently in the kind of Adam Sandler’sspace - healer – but fabrication apart , what is the biggest wanderer presently stomping around the Earth with us ?
Narrowing it down to the definitive beast of all eight - legged fauna is a unmanageable task as many spiders share standardized property and many species exhibit intimate dimorphism . intimate dimorphism discover the physical differences between male and females of the same mintage . In some wanderer specie , like many reptiles , the females are larger than the male person which enable them to conduct a smashing number of egg .
Generally , spiders can be divided into two groups or “ infraorders ” . Araneomorphae makes up 90 percent of spiders on Earth and are debate " true spiders " . These include metal money of orb weavers , jumping spiders , and huntsman spiders , all of which are characterized by fang thatface each otherin a chela - like fashion .

A comparatively small example of a Goliath birdeater.Image credit: PetlinDmitry / Shutterstock.com
The second mathematical group is made up of ancient spider called mygalomorphs . This chemical group , consisting of over 3,000 metal money , include all Lycosa tarentula , trapdoor spider , and funnel web spiders . They are distinguished partly by their downward fang - positioning and are considered more crude than the araneomorphs , having remained comparatively unchanged for thousands of year . Their slow development think of they ’ve retained certain feature from ancient time , namely their impressive size .
The Goliath birdeater
Measured in terms of size and mass , the biggest spider in the earth is theGoliath birdeater(Theraphosa blondi ) , more specifically the distaff Goliath birdeater , which has been described as being the size of a young puppy .
It’sspeculatedthat the name arrive from a nineteenth - C engraving that depicted a tarantula eat a hummingbird , which led to the entireTheraposagenus being mark “ birdeaters ” . Others , however , think the name came from an account of South American explorers in the 16th century who come across some chicks that had strike into the web lining of a Goliath burrow , leading to the assumption that these small birds were the spider ’s intend prey .
However , the name “ birdeater ” is a morsel of a misnomer as Goliath birdeaters , like many gargantuan spiders , tip predominantly on worms , amphibious aircraft , and large insects . But their large 2.5 - centimeter ( 1 - column inch ) Fang and virile neurotoxin spite mean they are more than open of chowing down onsmall birdsand other similar - sized prey like small rodents .

The giant huntsman spider predominantly lives in caves.Image credit: Nikhil Guhagarkar / Shutterstock.com
But despite being deadly to a host of pocket-size species , Goliath birdeater spitefulness is not lethal to humans , however , human are harmful to Goliath birdeaters as they ’re said to be adelicious delicacywhen jest at in banana parting .
Like many spiders , Goliath birdeaters are nocturnal and almost entirely unreasoning , alternatively relying on their sensible , haired bodies to find slight vibrations and guide them toward their next repast . They also have imposingly recollective lifespan , with female Goliath birdeaters living for roughly20 years , while their comparatively belittled virile counterparts loosely live for just three to six class .
While many tarantula species make nifty positron emission tomography and incline to have gentle temperaments , the Goliath birdeater is one of the more bolshy species . They are known to be nervous , neural , and evenaggressivewith their telling fangs potentially causing a nasty raciness .

Top left: Brazilian salmon pink tarantula. Top right: King baboon tarantula. Bottom left: Brazilian giant tawny red tarantula. Bottom right: Face-sized tarantula.Image credit: George Chernilevsky / Shutterstock.com, Audrey Snider-Bell / Shutterstock.com, Russell Marshall / Shutterstock.com, Ranil Nanayakkara / British Tarantula Society /Wikimedia Commons(CC BY 3.0 DEED)
The giant huntsman
It can be argued , however , that the Goliath birdeater is n’t the largest spider in terms of stage span . Despite being the figure one cause arachnophobes be given to forefend call in Australia , the giant huntsman wanderer ( Heteropoda maxima ) is preponderantly found in Asia , which is where it was first identified in a cave in Laos as recently as2001 .
There are thousand of subspecies in the hunter family ( Sparassidae ) , many of which are common across Australia , Asia , Africa , and South America , but only afew peoplehave really seen wild jumbo huntsman in the 23 class since its discovery .
The hunter family get their name from how they catch their prey . No , this does n’t think of it “ hunt club man ” , just that it is a hunting coinage that does n’t capture food using a web . Instead , they will expend much of their sentence hiding and waiting to ambush their next meal .
How big is the biggest spider in the world?
For sizing and mass , the Goliath birdeater advance “ biggest wanderer ” hands down . With a leg twain of 28 cm ( 11 inches ) – which is the size of it of a dinner shell – a chonky trunk that stretch 13 centimeters ( 5 inches ) , and a hefty system of weights of 175 grams ( 6 ounces ) , these spiders have been able to hoard such impressive mass by being a grown - dwelling , burrowing mintage .
But if you like your spiders lanky , the jumbo huntsman succeed for having the longest leg . Unlike many other spider mintage , it ’s the male gargantuan hunter that have the magnanimous leg - dyad , although the female have large bodies .
If you thought Goliath ’s legs were telling ( or terrific ) , this lanky freak has a branch bridge of roughly30 centimeters(12 inch ) , the size of , well , a really handsome dinner home plate . However , the giant hunter is much slimmer than the Goliath birdeater , with a trunk length of just5 centimeters(2 in ) , and a pathetic weight of just 167 gram ( 6 ounces ) , positively shrimpy in comparability to the mighty Goliath .
Where is the biggest spider in the world?
It ’s behind you ! Joking , unless you live in the dense rainforests of northern South America where the Goliath birdeater creates its earthy , World Wide Web - lined burrows in the diffuse soil . find in Venezuela , northerly Brazil , Guyana , French Guiana , and Suriname , these fatties incline to keep their porky bodies close to the terra firma , hiding under rock ‘n’ roll and root word . The rotund physique of tarantula coinage makes them especially susceptible to black injuries induced by falling from relatively low heights , so most like to keep their many foot on self-coloured land .
The more athletic of our duo , however , are native to Laos where the freakishly fast giant huntsman lives in cave and other dark spaces . They prey on worm , little reptiles , and even gnawer , but , although mildly venomous , their spite is not potent enough to earnestly harm humans . They are , however , maestro of the jumpscare , and are able to prevail at mind - boggling speeds of closely 1 meter ( 3 feet ) per second .
Some more impressive arachnids
The close congener of the Goliath birdeater are also among some of the largest arachnid species . Thepinkfoot Goliath(Theraposa apophysis ) and the Brazilian salmon pink birdeater ( Lasiodora parahybana ) both have a alike leg span of roughly 28 centimeters , but neither can measure up to Goliath ’s big dead body and telling weight .
to boot , the similar - sized Hercules baboon spider ( Hysterocrates hercules ) and king baboon spider ( Pelinobius muticus ) , native to West and East Africa severally , are the largest spider species in the continent grow a pegleg span of up to 20 centimeters ( 8 inch ) . They are so named because their leg are said to resemble a baboon ’s finger .
Another South American colossus , aboriginal to Paraguay , Argentina , and Brazil , is the Brazilian heavyweight tawny ruby tarantula ( Grammostola anthricina ) . With a leg twain of 25.5 centimeter ( 10 inch ) , this beast , although beautiful , does have malice that ’s harmful to humankind . However , it has a splendidly calm and docile temperament , making hostile encounters with human being unlikely .
And in the end , a recent discovery in 2009 award the innocentPoecilotheria rajaeithe terrifying name “ face - sized tarantula ” . Although harmless to world , as a result of deforestation in its native home ground of Sri Lanka and India , the face - sized Lycosa tarentula can often be found taking refuge inside buildings , and if you did happen to find one on your side , its 20 - centimeter ( 8 - inch ) ramification twain would indeed comprehend most of it .
Deforestation is a major concern for all big spider species , despite many not being officially assort as endangered yet . Many species are slowly being push out of their natural homes , increasing chances of interactions with humans where they are further imperil by the far-flung demonization of these beautiful beasties .