Pecky

Pecky (ペッキー Pekkī?) is the name given for the small penguins who are known as some of Sonic's animal friends. His first appearance has been in the original Sonic the Hedgehog. In many of the games, Dr. Eggman has captured Peckies along with other animal friends to imprison them in capsules or use them as energy sources for his Badnik army. Pecky has golden yellow bangs, large eyes and a small beak. He has black skin with a white belly, small hands and webbed feet.

Early on in the series, Sega of America renamed Pecky as Tux in the second draft of the Sonic Bible. This name was then used in the western markets and the other media. It is stated in the Sonic Bible that, Tux comes from a large family like other animal friends.