Official English Name:
For Jack's Devil Fruit, see Zou Zou no Mi, Model: Mammoth.
Mammoth was a ship captained by Jack of the Beasts Pirates. It was destroyed by  Zunesha during Jack's second attack on Zou.
The ship's figurehead was that of a mammoth's head, hence the name. It also had the Beasts Pirates'
Jolly Roger located on the main sail.
Jack sailed the Mammoth to the
Marine convoy carrying the imprisoned Donquixote Doflamingo, with the intention of rescuing Doflamingo.
Jack went through with his plan of attack, and managed to sink two of the four escort ships before being defeated by the marines led by
Admiral Fujitora and former Fleet Admiral Sengoku.
Jack on board of the Mammoth, returning to Zou.
The ship survived the battle and was still buoyant, although it sustained heavy damage on the sails and the hull, and all the windows shattered.
Jack led it and the rest of his fleet back to  Zou, where he intended to bring down the elephant carrying it.
The Mammoth smashed to smithereens.
Jack used the Mammoth along with a convoy of four other ships to attack
Zunesha, bombarding its leg with a torrent of cannon fire. However, when Zunesha was ordered to fight by Kozuki Momonosuke, with one swing of its trunk, it completely obliterated the Mammoth. 
: All-Stars • King • Queen
: Tobiroppo • X Drake ‡ • Page One • Ulti • Who's-Who • Black Maria
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Subordinate Crews: • Drake Pirates * • On Air Pirates
Allies and Affiliates: • Big Mom Pirates • Yamato ‡ • Kurozumi Family ( Kurozumi Orochi) ‡ • Donquixote Pirates ( Donquixote Doflamingo • Caesar Clown ‡) ‡
Bounties Pirates ≠
Ships: • Mammoth † • Liberal Hind • Stay Tune
: Devil Fruit Based • Uo Uo no Mi, Model: Seiryu • Ryu Ryu no Mi, Model: Pteranodon • Ryu Ryu no Mi, Model: Brachiosaurus • Zou Zou no Mi, Model: Mammoth • Ryu Ryu no Mi, Model: Allosaurus ‡ • Ryu Ryu no Mi, Model: Spinosaurus • Ryu Ryu no Mi, Model: Pachycephalosaurus • Ryu Ryu no Mi, Model: Triceratops • Kumo Kumo no Mi, Model: Rosamygale Grauvogeli • Neko Neko no Mi, Model: Saber Tiger • Wara Wara no Mi
: Fighting Style Based • Haki • Electro • Alpaca Kenpo
Support: • Koro • Seastone • Excite Bullets ( Mummy • Ice Oni)