The Lava Calf is the offspring of a Bull and Lava Cow. When you harvest milk from your Dairy Farm (with 1 Bull and at least 1 Lava Cow inside) there is a chance that a Lava Calf will be born. When you harvest from your Cow Pasture with at least 1 Lava Cow there is a chance that a Lava Calf will be born. The Lava Calf can be placed in the Baby Playpen. When harvesting a Baby Playpen containing at least one Lava Calf, it is possible to find two calves. One Lava Calf is placed in the player's gift box and the other is shared to the player's wall.