40d:Titan

A Titan is a megabeast that arrives at fortresses without any warning. Titans are large, intelligent, humanoids that attack any dwarf it may see at the time. Unlike a Bronze Colossus, Titans feel pain and can become overexerted or even knocked unconscious. This makes them much easier opponents to take down, especially if your military consists of wrestlers, since they can force the titan to overexert itself and become an easy target.

Titans can not be butchered, but leaving the corpse to rot gives 20 bones and a skull. However, unlike those of dragons and hydras, titan skull and bones are no more valuable than those of regular creatures. This means that making a stack of 100 bolts is the best use for titan bones.

Via personal experience, I've also experienced that Titans can starve to death.

V · T · E Creatures
Races	Dwarf • Elf • Goblin • Human • Kobold
Animals	Alligator • Beak dog • Bilou • Black-crested gibbon • Black-handed gibbon • Black bear • Bonobo • Cat • Cave crocodile • Cheetah • Chimpanzee • Cougar • Cow • Deer • Dog • Donkey • Elephant • Elk • Fox • Gazelle • Giant bat • Giant cave spider • Giant cave swallow • Giant cheetah • Giant desert scorpion • Giant eagle • Giant jaguar • Giant leopard • Giant lion • Giant mole • Giant olm • Giant rat • Giant tiger • Giant toad • Gorilla • Gray gibbon • Grimeling • Grizzly bear • Groundhog • Harpy • Hippo • Hoary marmot • Horse • Ice wolf • Jaguar • Large rat • Leopard • Lion • Mandrill • Mountain goat • Mule • Muskox • Naked mole dog • One-humped camel • Orangutan • Pileated gibbon • Polar bear • Raccoon • Rhesus macaque • Saltwater crocodile • Sasquatch • Siamang • Silvery gibbon • Tiger • Two-humped camel • Unicorn • Warthog • White-browed gibbon • White-handed gibbon • Wolf
Aquatic	Angelshark • Basking shark • Blacktip reef shark • Blue shark • Bluefin tuna • Bluefish • Bull shark • Carp • Cod • Coelacanth • Common skate • Conger eel • Frill shark • Giant grouper • Great barracuda • Great white shark • Halibut • Hammerhead shark • Longfin mako shark • Longnose gar • Manta ray • Marlin • Milkfish • Nurse shark • Ocean sunfish • Opah • Pike • Sea lamprey • Sea monster • Sea serpent • Shortfin mako shark • Spiny dogfish • Spotted wobbegong • Stingray • Sturgeon • Swordfish • Tigerfish • Tiger shark • Walrus • Whale • Whale shark • Whitetip reef shark
Humanoids	Antman • Batman • Blizzard man • Cave swallowman • Dark gnome • Fire imp • Fire man • Foul blendec • Frogman • Gremlin • Iron man • Leechman • Lizardman • Magma man • Merperson • Mountain gnome • Mud man • Nightwing • Ogre • Olmman • Ratman • Satyr • Slugman • Snailman • Snakeman • Strangler • Tigerman • Troglodyte • Troll • Werewolf
Semi-Megabeasts	Cyclops • Ettin • Giant • Minotaur
Megabeasts	Bronze colossus • Dragon • Hydra • Titan
Nonexistent	Centaur • Chimera • Griffon • Treant • Wizard