Skeleton

Skeletons spawn in the Cavern layer. They follow the Fighter AI, and can open doors. Unlike Zombies, they do not require a Blood Moon to do so. They can drop a Hook (crafting material) which is essential for crafting a Grappling Hook, though other Hooks can be acquired through other means.

Skeletons are immune to the Poisoned debuff.

They can also be spawned by powering a Skeleton Statue.

Trivia
Skeletons appear in at least 18 different forms in the game, being: The 7 Skeleton forms, the 4 Angry Bones forms, Skeletron, Skeletron Prime, Skeleton Archer, Undead Miner, Armored Skeleton, Tim, and Rune Wizard

History
Squelette 해골 Skeleton Skeleton Скелет