Goliath birdeater tarantula

Goliath Birdeater (Theraphosa blondi)

The Goliath Birdeater (Theraphosa Blondi) belongs to the Tarantula family. In terms of weight, the Goliath birdeater is the biggest spider on the planet. They can weigh up to 175g. However, when it comes to leg span, they come second to the giant huntsman spider. The name “birdeater” originated from an 18th-century engraving that showed another kind of tarantula eating a hummingbird, but on the contrary, these spiders rarely prey on birds.

Goliath Birdeater Tarantula Facts

SizeBody is 4.5 inches in length and leg span is 12 inches
ColorRusset brown or black color
Diet frogs, rodent toads, snakes, earthworms, and lizards
Lifespan15 to 25 years for females and 3 to 5 years for males
Distributionfound in Brazil, Venezuela, Suriname, French Guiana, amazon rain forest and Guyana

Physical Appearance and Identification Traits

1. Size

The goliath bird eater size measures up to 4.75 inches, the females being larger in size as compared to males. Having a leg span of 12 inches, these spiders are second to giant huntsman spiders. Their fangs can measure up to 1.5 inches.

2. Color

Goliath bird eater have a russet brown or black color and have faint markings on the third and fourth pair of legs.

3. Web

Goliath birdeater do not spin the webs. Instead, they use their venom to catch the prey.

4. Eggs

The female goliath bird eater lays up to 50 to 200 eggs in a sac. She wraps the eggs into a ball that is nearly the size of a tennis ball and carries the sac along with her. 


Male spiders live up to 3 to 5 years, whereas female spiders live longer, ranging from 15 to 25 years.


Goliath bird eater spiders are found in Deep burrows, swampy or marshy regions.

Preys and Predators

Despite the name, the goliath bird eater does not prey on birds. Their diet mainly consists of frogs, rodent toads, snakes, earthworms, and lizards. These spiders are commonly eaten by certain spider wasps, some snakes, and other tarantulas.


Goliath Birdeaters is native to northern South America. They are found in Brazil, Venezuela, Suriname, French Guiana, and Guyana. Their primary range is within the Amazon Rainforest.

Does Goliath Bird Eater Spider bite and if They’re poisonous?

Goliath bird eater spider fangs have poison glands in their base. Although this poison is not toxic to humans, it can cause severe pain, nausea, and sweating.

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