Cryptozoologist

List of new creatures:

• Nessie - plesiosaur-like water reptile. Tameable (by Fish salade), rideable, breedable. Attacks those who don't have Dolphin's Grace effect on them. Spawns in water. If fed by poisonous potato or spider eye, it will regurgitate fish.
• Copperdactyl - pterosaurus made of copper. Attacks players without any raw copper in their inventory. Tameable (by Copper dinner), breedable. If tamed, can eat copper and regurgitate some mining resources. Spawns in savannas, deserts, on the hills.
• Woolysaurus - wooly dinosaurus, quite similar to carnotaurus. Agressive, but tameable (by Frost meal), rideable and breedable. Shearable. Hunts animals. Spawns in cold biomes.
• Birdile - flying crocodile with 4 wings, somehow inspired by Bombardiro Crocodilo :) Attacks players without Feather Falling effect. Tameable (by Flying cookies), rideable, breedable. Spawns in jungle.
• Tortoise - not as simple as it might seem. Small tortoise carries the whole city on its back. You can right click on it with Baked potato, Golden apple or Golden carrot, and the residents of the city will probably give some resources. Spawns rarely in forests.
• Flying Teufel (germ. Devil) - small angry devil. Imposes Nausea on players who attack them.
• Razzak - bird- and insect-like humanoid inspired by "Eragon" novel. Imposes Slowness and Weakness to a nearby player.
• Rhinnoth - hybrid of mammoth, rhinoceros and... Giraffe? Herbivore, leaves a lot of dung behind!
• Brontornis - huge bird, can be ridden & moves extremely fast. Lays eggs when bred.
• Wooddwarves - NPCs living in their tree houses. Can trade clubs, hats and... something else. There are also some effects that Dwarves adds to the nearby player: Oak & Birch Presence. The first one increases your health and cleave, whereas the second one gives you extra armor and attack speed.
• Enttity - natural golem. You can by its heart from dwarves. Well, it has a chest.
• Bigfoot. Spawns in its igloo together with cryptozoologist. Trade ice metal which can be used to upgrade Diamond sword to Iceblade.

Bosses:

• Ocean Devourer. Feed Nessie with suspicious stew to summon it. It is gigantic mosasaurus eating everything that moves. Summons agressive ichtiosaurus-minions. It drops External Lungs which refills your oxygen when used underwater and Eye of Summon which allows you to summon your ichtiosaurus-minions. They catch fish!
• Lethrblaka. Spawns in deepsplate temples on surface. Looks like pterosaurus or bat. Has two stages: the first one with range attacks and the second one with lifesteal. It drops pieces of its beak and wings which can be used to upgrade Beakblade and Flying jacket. Upgraded Flying jacket allows pushes you in air when you jump.
• Demonic Magmasaurus. In Nether, you can find strange arena wih altar in middle. Place Brontornis or Woolysaurus egg there and right click on it with Loupe of Thousand Eyes to summon Magmasaurus. This boss gets extra damage from Iceblade. When you kill it, you get its tail which can be connected with Oak or Birch club to get Tailhammer. When right clicked on block, it throws you up and reinforces your next attack.

All the mobs have their custom sounds and animations.

There is also some equipment: Weird Mask that provides player with Night vision, Flying Chest which gives permanent Feather Falling, Gear Pants reinforcing player with Haste and Flippers giving constant Dolphin's Grace. Moreover, there are two blades: Hornblade (which could be crafted - obviously - with Woolysaurus' Horn and protects from Nausea) and Beakblade (crafted with Razzak's beak and protecting from their debuffs). All the new meals also imposes both negative and positive effects on player. Why not test it by yourself?) And get some new achievements as a reward. There is also a Bombshooter that allows you to shoot Tallowbombs.

There's still a lot of to do in future: more structures, more animals, more bosses... As well as refactoring and redising of the existing content.

To sum up the main feature of the mod is the design, just like for other MCreator mods.

Required: Geckolib, MCreator Link

Recommended: JEI

P.S. Sorry for my language mistakes, I'm not a native speaker.)