Yao Guai (Honest Hearts)

Yao guai are a species of mutated black bear. These creatures can be found in Zion Canyon in 2281. Unlike in Fallout 3, Animal Friend does not affect them; they will become hostile towards the player on sight.

Biology
The yao guai of Zion Canyon seem to be visually identical to the yao guai of the Capital Wasteland, but larger.

Gameplay attributes
Yao guai are extremely fast and powerful creatures, second only to deathclaws in terms of raw strength and speed. The player may come in contact with one when it is asleep/laying down, so unlike deathclaws they are less alert. Also, the one attacking a green gecko at the start of Honest Hearts will ignore the player unless attacked, but all others for from then onward will attack the player character.

Yao guai
These creatures are nearly identical to the yao guai found in the Capital Wasteland. They are second to only the deathclaw in terms of raw strength and speed. They are also normally found in groups of two to four.

Yao guai cub
Yao guai cubs are simply smaller, weaker and less deadly versions of their parents. They are encountered with their parents. At lower levels they may replace encounters with older varieties.

Giant yao guai
Giant yao guai are larger versions of yao guai. A giant yao guai can easily kill a low-level player if they're not careful. Early in the Honest Hearts add-on, a giant yao guai attacks and kills a green gecko on top of a rock while the player approaches the Dead Horses Camp. A few of these can be found near The Red Gate.

Appearances
Yao guai appear in the Fallout: New Vegas add-on Honest Hearts.

Behind the scenes
(The meaning of the word "yao guai" actually can not be simply captured in English, the variety range of words that can represent the meaning include monster, ghost, spook, sprite, giant, undead, devil, demon, fiend, evil spirit, elf, goblin, boggy, and fairy.)
 * In Chinese, yao guai (妖怪) simply means "monster." In Chinese mythology, "yao guai" are physical manifestations of the spirits of mistreated animals, or fallen divine animals.
 * A piece of yao guai meat can be found inside the Legate's war tent. Since the only other place that Yao Guai are known to inhabit in the Fallout world is the Capital Wasteland, it can be assumed that this piece comes from Zion National Park.
 * Follows-Chalk will often make mention of how there couldn't possibly be anything as bad as yao guai in the civilized world, indicating that deathclaws apparently haven't reached Zion.