Gary

Meow- Gary's Unlock Message

Gary the Snail is SpongeBob's pet snail. Gary usually can only say, "Meow", while sea worms in the show bark, which indicates that snails are the ocean equivalent of cats and worms are dogs. In some episodes, Gary says things other than "meow" but this is unusual. Gary is the sixth or seventh main character of the show, he has the fifth most appearances in the SpongeBob series.

Biography:
In "Opposite Day," Gary tried to do the opposite of his stereotypes by barking like a dog.

In "The Secret Box," Gary responded to SpongeBob's question with "Meow-no". SpongeBob did not think much of it and replied, "Aww, what do you know? You're a snail!" SpongeBob did not recognize it as special, meaning this is not the first time Gary spoke. In The Movie, The Citizens of Bikini Bottom were chanting, "All hail Plankton," while Gary chanted monotonously, "Meow Plankton."

In many episodes, it has been indicated that Gary is very intelligent, the biggest hint of which was in Sleepy Time, where Gary spoke in his dream (that SpongeBob was interrupting) and sounded very old and wise.

Read more at Encyclopedia_SpongeBobia.