Black scorpion vs Tarantula spider

                                                Giant Tarantula spider 18.5 x 17 x 5cm

                                                  Black scorpion 18 x 17.3 x 3cm

                                             Tarantula spider & Black scorpion 22.2 x 20.4 x 4.2cm
When  Black scorpion and Tarantula spider fight, what do they use their weapon to survive?
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