Tom McGrath Net Worth is $3 Million Tom McGrath Biography Born on August 7, 1964. Hometown is Lynwood, Washington.
Who. Phoneutria. Where. Brazil Brazil. The world's most venomous spiders are the Brazilian wandering spiders of the genus Phoneutria, and particularly the Brazilian huntsman Phoneutria fera, which has the most active neurotoxic venom of any living spider. Its venom is so potent that only 0.006 mg (0.00000021 oz) is sufficient to kill a mouse. Phoneutria spiders are usually dark in colour and have a body-and-leg spread of approximately 17 cm (6.75 in). These large and highly aggressive creatures often enter human dwellings and hide in clothing or shoes.
Why is the Brazilian Wandering Spider the most dangerous spider in the world?   These spiders are extremely aggressive have very toxic venom, which is both necrotic (causes tissue death) and neurotoxic (attacks nervous system). Most toxic spiders' vâ¦enom is either necrotic or neurotoxic, not both.