- Tarantulas grow to a large size- Grand Canyon black tarantulas grow up to 4 inches (10cm) from leg tip to leg tip. The goliath bird-eating spider (Theraphosa blondi) is the world's largest species of tarantula. Found in South America, it can reach up to 11 inches (28cm) from leg tip to leg tip.
- Tarantula burrows are silk-lined holes in the ground. Tarantulas use silk as a frame to prevent the burrow from collapsing.
- All tarantulas are covered in thick hair. Grand Canyon black tarantulas are dark in color, and the hair on the abdomen is reddish or orange in color.