Poochyena

“At first sight, POOCHYENA takes a bite at anything that moves. This POKéMON chases after prey until the victim becomes exhausted. However, it may turn tail if the prey strikes back.”

— Pokémon Ruby

“POOCHYENA is an omnivore - it will eat anything. A distinguishing feature is how large its fangs are compared to its body. This POKéMON tries to intimidate its foes by making the hair on its tail bristle out.”

— Pokémon Sapphire

“It savagely threatens foes with bared fangs. It chases after fleeing targets tenaciously. It turns tail and runs, however, if the foe strikes back.”

— Pokémon Emerald