Some of the most unique and memorable species to see in the wild, Amazon Rainforest Spiders are a massive highlight for tourists.
The world’s largest jungle, the Amazon Rainforest occupies most of the South American continent, including countries like Peru, Brazil, Colombia and Bolivia. As a result we can find hundreds of incredible Spider species throughout the rainforest – which vary from the small, communal Social Spiders and the impressive Brazilian Wandering Spider – to the aerial gymnasts of the Pink Toe Tarantulas.
In this guide, we’ll explore everything you need to know about Amazon Rainforest Spiders, such as whether they are all dangerous, which are the most unique species as well as where to spot them. We’ll also answer your most frequently asked questions in our FAQ section.
Everything You Need To Know About Amazon Rainforest Spiders
The Wonderful And Weird Variety Of Spider Species In The Amazon
Given the vastness and sheer size of the Amazon Rainforest, there are over 3000 different species of spiders that can be found here. It’s also important to remember that the Amazon is not just a flat basin with rivers – the topography can also vary to high jungle mountains and “ceja de selva” regions, meaning spiders are also highly adapted and unique to the particular environment that they come from.
Some spiders are known for their massive size and independence such as the Goliath Birdeater Spider, while others are tiny and are uniquely communal-living, such as Social Spiders. Others have even developed incredible defence strategies such as the Decoy Spider found in the Tambopata Reserve – which creates a replica of itself out of leaves and insect carcasses – to aid escape when a bigger predator attacks it.

Are Amazon Rainforest Spiders Dangerous?
Against popular belief, Spiders are generally harmless and actually avoid conflict and aggression towards humans where possible. The only reasons humans sustain bites are because they are inadvertently threatening them or getting too close to their territory – so by staying clear and observing them from a distance, you can safely enjoy the experience of watching some of the world’s most unique spiders go about their usual business.
In terms of how dangerous Amazon Rainforest Spiders can be, this really depends on the particular species. Some like the Decoy Spider (and even the Goliath Birdeater to an extent) are relatively harmless, with their bites usually being compared in feeling to a bee sting – without potent venom. However others like the Brazilian Wandering Spider have very dangerous venom and can be life-threatening to humans – so should only be observed from a safe distance.
5 Amazon Rainforest Spiders That Are Worth Seeing
The Amazonian Pink Toe Spider
One of the more famous tarantulas found in the Amazon, the Amazonian Pink Toe Spider is native to Peru – and are highly adapted for living in the flooded forest regions. They are well-known for their acrobatic abilities, they are able to sprint vertically up trees quickly, and are also known for their striking pink feet. They are by far one of the most memorable species of Spiders to see when embarking on a Tambopata Rainforest Tour.

The Goliath Birdeater Spider
The world’s largest Spider – you’d be forgiven for thinking that these giant beasts actually eat big birds whole – however this is not quite the case. Found in the northern Amazonian regions in countries like Venezuela and Guyana, they can measure up to 30cm long and weigh up to 175g. While they don’t eat birds per se, their sheer size and strength allows them to overwhelm small mammals, lizards and even snakes on the occasion. While their 2.5cm fangs can be painful to humans, their venom is relatively mild.
The Decoy Spider
Now we move onto one of the most interesting species of spider – which was only recently discovered. Found within the Tambopata National Reserve near Puerto Maldonado in Peru, the Decoy Spider is not an aggressive species like others found here. Much smaller, it’s known for its ability to create an exact replica of itself using dried leaves, forest debris and carcasses of small prey. Then when a predator attacks this replica – this allows time for the Decoy Spider to escape from the area unharmed.

The Social Spider
Spiders are usually independent or live in very small numbers close to each other – however the Social Spider is a different breed altogether. These tiny spiders live in massive colonies of up to 50,000 – all living together on a giant web that spans several meters. When a prey lands on the web, they coordinate movements and together overwhelm it, which is a behaviour more common with ants and wolves rather than arachnids. Social Spiders are found in Peru, usually on small trees within the Tambopata region.
The Brazilian Wandering Spider
Perhaps one of the most famous Amazon Rainforest Spiders, the Brazilian Wandering Spider is found in many countries such as Brazil and Peru. Famous for their highly potent venom that can kill humans if left untreated (and bizarrely cause long-lasting erections in men), the Brazilian Wandering Spider doesn’t actually have a web or permanent home – and instead wanders the floor hunting small reptiles, rodents and insects.

Frequently Asked Questions About Amazon Rainforest Spiders
In this section we’ll now explore the most frequent questions we get about Amazon Rainforest Spiders, as well as anything else you need to know.
What Is The Biggest Spider In The Amazon Rainforest?
By far the biggest spider in the jungle, the Goliath Birdeater Tarantula is a true beast – with a body size of 15cm, as well as a separate leg size of up to 30cm. Despite the intimidating name, Goliath Tarantulas don’t actually eat birds at all, with their diets mostly consisting of insects, frogs and other small rodents. They also can weigh up to a hefty 175g too – which makes other smaller species feel tiny in comparison.
Are Amazonian Tarantulas Poisonous?
Despite being one of the largest Amazon Spider species in the entire rainforest region, Amazonian Tarantulas bites are indeed venomous – but are more painful rather than dangerous. While their bites certainly can hurt if you are unlucky enough to get bitten by one, hardly ever have they been fatal to humans. In fact they aren’t considered truly dangerous at all – unless you’ve got a known allergy or react to other types of insect bites or stings.
What Is The Deadliest Spider In The Amazon?
Mentioned earlier in this article, the most dangerous spider in the Amazon easily has to be the Brazilian Wandering Spider – which is considered not just one of the most intimidating – but also one of the most lethal. Its venom can kill a human in less than 30 minutes, meaning urgent treatment is essential if bitten. As well as strolling along jungle floors looking for prey, they can also oddly pop up in random containers (such as in fruit piles) or other unexpected places.
Overview Of The Wildest Amazon Rainforest Spiders
And that’s all for this guide on the different species of Amazon Rainforest Spiders and the most unique types found.
From the famous Tarantulas that live up in the canopy to the frightening Brazilian Wandering Spider that walks the forest floods, the Amazon Jungle is alive with all kinds of weird and wonderful arachnids. While many species can be found in various countries and regions, some (like the Peruvian Wandering Spider in Peru) are only found in select locations and can be observed during organised jungle hikes.
Looking to see Spiders and other exotic wildlife during your visit to Peru? Here at Tronco Tambopata we operate a thrilling 3 Day Rainforest Tour, which includes all lodging, meals, private transport and an expert local wildlife guide to lead your treks.