Cows spawned in the mushroom biome in Minecraft 1.9 and later.
Mooshrooms are 1.3 blocks tall (1.4 blocks tall in 1.9)
Baby mooshrooms are 0.65 blocks tall(0.7 blocks tall in 1.9)
Mooshrooms spawn on mycelium blocks in mushroom island biomes in herds of 4 to 8.
Main article: Breeding
If a pair of mooshrooms are given wheat, they will breed.
Feeding wheat to a baby mooshroom will speed up its growing time by 10% of the remaining time.
Mooshrooms drop 0–2 leather and 1–3 raw beef (1–3 steak if killed while on fire). Shearing one will drop 5 red mushrooms and turn the mooshroom into a normal cow, emitting an explosion particle. When you shear the mooshroom cow, the mushrooms can’t grow back. Mooshrooms also drop 1–3 experience when killed by a player or tamed wolf.
Besides giving milk, mooshrooms can be milked with bowls to give mushroom stew.