Tarantulas are scary they can get to the size of someone’s head or a foot long. I do not want to have one as a pet. A lot of people do though. I am kinda scared of normal spiders to. The Goliath bird eating spider is a tarantula even though it has the word spider in its name. they eat insects rodents sometimes birds. They have venom glands it their fangs. So they kill their prey faster. That’s it!