The Hairy Bulborb (scientific name - Oculus kageyamii follicus) is a species found in Pikmin 2 for the GameCube. They're a sub-species of the Bulborb and are a member of the Grub-dog family. They're snowy white and live in icy environments. The species obtained this name by all of the white hair on its back half. When half of the creature's health has been depleted, all of the hair will fall off, revealing a bright blue weak spot.
According to Olimar's research, the Hairy Bulborb's hair warms its internal origins, something that needs to be done in the climate that it's found in, thus explaining why this trait is absent in other similar species such as the Red Bulborb. It should also be noted that Louie certainly likes the taste of a Hairy Bulborb, and a specific recipe from the game that he's delivered can be seen below.
"This subspecies of grub-dog has a thick coat of soft white fur that obscures its abdominal markings. The fur also warms its vital organs, making this species well adapted to colder climates. However, its hair follicles are surprisingly frail, which can result in immediate hair loss if the creature is surprised."
"Remove all of the Bulborb's hair, wrap the beast in foil along with a halved lemon, and place it directly on the grill. The foil should protect the carcass from scorching, and the lemon will give the meat an elegant hint of citrus."