Profit - earnings above is a spider Tarantula with Birdeater Tarantula Goliath type, size spider legs can reach a length of 30cm, this is a tarantula spider largest and heaviest, weighing about - about can be up to 170 grams. This spider is scary is because Tarantula is already well-known and dangerous, but this spider is quite harmless to humans. If the spider feels is in danger or upset, she would rub her feet.