The more temperate version of the Anteka, Kelbi like to chill out in forests and you can also find them at the bases of volcanos before it gets too hot. The green Kelbi are male (they also have a single horn) and the blue Kelbi are female. If provoked, male Kelbi will sometimes headbutt you, but like all other herbivores, they prefer to flee.
Of interesting note is that Kelbi cannot be killed. Even if you hack and slash at them, they will simply fall to the ground stunned. Give them a quick carve for a horn, their fur, or even their liver and they will get right back up and then as they run away will fade so you can't just catch them and carve them again. Do they have multiple livers that regenerate or something?
Kelbi Horns are pretty important for a lot of materials just for your information.