Sometimes people take scary things and try to make them less scary by picking a cute name. For example, calling broccoli baby trees so it sounds less like a veggie. Or in this case naming a spider 'Nemo'! I don't care how you try to frame it spiders are scary.
It's full name is Maratus Nemo, a new discovered peacock spider native only to Australia. To be completely fair it is super cute but don't let it fool you! It will eat your face if it gets the chance...just like every other spider in the world!