3. Goliath Birdeater
The Goliath birdeater is the world’s largest tarantula, boasting a leg span that can reach up to a foot, enough to unsettle even the bravest among us. Despite its formidable size and hairy appearance, this arachnid is surprisingly harmless to humans. Its venom is mild, comparable to a bee sting, and it primarily preys on insects and small creatures, not birds as its name might suggest.