Garypus titanius

Garypus titanius, the giant pseudoscorpion, is the largest species of pseudoscorpion—small, scorpion-looking creatures—in the world.

[3] Pseudoscorpions are venomous arachnids (a group that includes spiders, ticks, and scorpions) and are generally tiny—around 3 mm (.1 in) long.

[4] The giant pseudoscorpion, though, can grow to five times that size at 11 mm (.5 in).

[5] It lives among seabird colonies, feeding mainly at night on smaller prey such as insects.

[6] The giant pseudoscorpion is threatened by non-native insects and animals, such as mice.