Mob Voyage is a giant fan-made Minecraft version based on Animal Voyage. It features basically the original minecraft animals but there are new animals apart in packs based on the Animal Voyage lands. All of them have spawners.
Red Panda - Spawns in Jungles and Forests. Eats/Kills Silverfish and Predators are Wolves and Ocelots. No sounds.
Hippopotamus - Spawns in Wetlands, Rivers and Swamps. Sounds.
Gorilla - Spawns in Jungles and Savannas. Sounds.
Snow Leopard - Spawns in Tundras, Taigas and Ice Near The Ocean. Eats every herbivore and chickens. Sounds.
Emperor Penguin - Spawns in Tundras, Taigas and Ice Near The Ocean. Eats Squids and Predators are Wolves. Sounds.
Aardvark - Spawns in Savannas and Prairies. No sounds.
Chameleon - Spawns in Jungles and Forests. No sounds.
Margay Cat - Spawns in Jungles and Rivers. Fights with Ocelots. Sounds.