The biggest spider on earth is the Goliath bird eater spider which is also known as the Theraphosa blondi spider.
The Goliath bird eater spider is a tarantula spider that can reach up to 11 inches in length and weigh up to 6 ounces which is big enough to cover a dinner plate.
The worlds most deadliest spider is the wandering spider.
Wandering spiders are a family of spiders that includes the Brazilian wandering spiders.
These spiders have a distinctive longitudinal groove on the top-rear of their oval carapace similar to those of the Amaurobiidae.
They are highly defensive and venomous nocturnal hunters.
The wandering spiders bite, which delivers neurotoxic venom, can be deadly to humans, especially children, although antivenom makes death unlikely.
Because they are aggressive and have a venomous bite, it is advised not to keep this species as a pet.
This species of spider is not like Tarantulas.
Although they do have venom, they are harmless to humans.