Tarantulas, like snakes, molt by crawling out of their outer skins and leaving them behind. Scorpions are arthropods with six legs and stingers on the ends of their tails. Bark Scorpions are the only common Arizona scorpions with venom potentially dangerous to people. Mother scorpions take good care of their babies and they carry their babies on their backs. Mother scorpions usually lay about 10 eggs and hatch about 8 babies.
Scorpions hunt their prey.
When they catch it they inject it with venom to kill or paralyze it. Horny Toads are not really toads at all, but lizards. There are many species of horny toads with many of them living in the Tucson area. Horny Toads' favorite food is ants. Blood seen squirting from a horny toads' face is a sign of fatal injury.