The black mamba is a shy animal. They like to avoid other animals, but if another animal confronts them, they become aggressive. When the black mamba is threatened, it will raise its head, open its mouth, expand its hood, and flick its tongue. It will also hiss. Its bites are fast and it bites many times. Its venom can be fatal to us. The black mamba likes to bask in the sun, and it remembers the spot it basks at. They are fast and can climb trees quickly.