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Sticker of Brazilian whiteknee tarantula
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Brazilian whiteknee tarantula

Acanthoscurria geniculata
Eats: Other bugs and small animalsSpidersRainforests and jungles8 legsNot an insect, but a bug cousin

The Brazilian whiteknee tarantula is a big, dark brown, hairy spider with bright white stripes on its legs, like white knee socks. It comes from the warm, rainy Amazon in Brazil. Many people keep it as a pet because it is so striking.

Fun fact: spiders are not insects. Insects have six legs, spiders have eight. Everyone calls them bugs anyway!
Lives in
The Amazon rainforest in northern Brazil
Length
9 cm (3.5 in)
Top speed
about 1.8 km/h (1.1 mph)
On foot, estimate
Can it hurt you?
Can bite or sting
What does it eat?
Like other tarantulas, it hunts insects and other small animals that it can overpower.
For real!Photo of Brazilian whiteknee tarantula
Picture by Insects Unlocked. CC0, via Wikimedia Commons.

How big is it?

How long is it?

Brazilian whiteknee tarantula about 9 cm long (3.5 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)A banana about 18 cm (7.1 in)
as long as 3 toy building bricks in a rowcould run across a dinner table in 2 seconds

How big is Brazilian whiteknee tarantula compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

With its legs spread out, a big female can be over 20 centimetres across, as wide as a dinner plate.

2

It grows fast and is grown up in about 3 to 4 years.

3

The males are smaller and not as brightly coloured as the females.

you asked

Most asked questions about Brazilian whiteknee tarantula

?How big is the Brazilian whiteknee tarantula?

Its body can be up to 9 centimetres long, and a big female's legs reach more than 20 centimetres across.

?Why is it called whiteknee?

Because it has bright white bands on its legs, near the knees.

For bug experts

Scientific name
Acanthoscurria geniculata
Group
Spiders
Family
Theraphosidae
Classification
Arachnida > Araneae > Theraphosidae
Lives on
South America

Where the facts come from

  1. Brazilian whiteknee tarantula (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
  2. Picture by Insects Unlocked. CC0, Wikimedia Commons. The round sticker of this bug is cut from the same picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at hello@bugwiki.app and we will fix it.

More from the same group: Spiders

Also at home here: Rainforests and jungles