Fire Fluffalo
From Starbounder - Starbound Wiki
Fire Fluffalo are a harvestable farm animal. When they're ready to harvest, they will emit fire and smoke particles, and can be interacted with to produce Scorched Cores.
Fire Fluffalo are evolved from Baby Fluffalo when they're hatched from a Fire Fluffalo Egg. To hatch the egg, place it on the ground. When the egg starts to shake press E or interact and a baby fluffalo will hatch.
These can be purchased, along with other types of fluffalo eggs, from Terramart at the Outpost.
Fluffalo cannot be killed, except by coming into contact with dangerous liquids such as Poison and Lava, or by running into aggressive monsters.