The Goliath Birdeater (Theraphosa blondi) is widely recognized as the largest spider in the world by mass and size.

It can have a leg span of up to 11 inches (30 cm) and weigh over 6 ounces (170 grams).

This spider is native to the rainforests of northern South America, particularly in countries like Venezuela, Brazil, Guyana, and Suriname.

Despite its name, it rarely eats birds. Its diet primarily consists of insects, small rodents, frogs, and lizards. However, it is capable of catching and eating small birds if the opportunity arises.

The Goliath Birdeater is not considered dangerous to humans. Its bite is venomous but typically causes only mild pain, swelling, and irritation, similar to a wasp sting.

It has a hairy, reddish-brown body and legs. Its large fangs can be up to 1 inch (2.5 cm) long.

The spider uses urticating hairs (barbed hairs on its abdomen) as a defense mechanism. When threatened, it flicks these hairs toward predators, causing irritation.

Female Goliath Birdeaters can live up to 15–25 years, while males have a shorter lifespan of about 3–6 years.

Yes, some people keep them as exotic pets, but they require specific care and conditions to thrive. Their size and defensive behaviors make them more suitable for experienced handlers.

Mating involves a male transferring sperm to the female using specialized appendages. Females lay eggs in a silk sac, which they guard until the spiderlings hatch.

They are not currently classified as endangered, but habitat loss and collection for the exotic pet trade could pose threats to their populations.

Yes, it can produce a hissing sound by rubbing its legs together, a behavior known as stridulation, which is used to scare off predators.

While the Goliath Birdeater is the heaviest spider, the Giant Huntsman Spider (Heteropoda maxima) holds the record for the largest leg span, measuring up to 12 inches (30 cm).