Priscilla the Peckish

Priscilla the Peckish is some type of vaguely Chain Chomp-like insect creature found on Yoshi's Island. She is the boss of World 3 in Yoshi's Island DS and is arguably one of the easiest bosses in the game.

If the Yoshi jumps into or over the sand which she inhabits at the wrong time, Priscilla will actually eat him and he will lose all of his eggs. Yoshi can jump from platform to platform in Priscilla's path to lure here out of her sand pit and throw an egg at her, or otherwise a Glide Guy will come out and that will lure her; however, the first method is best since the other happens periodically and can therefore take quite some time.

Trivia

 * Priscilla's attack manners are probably based on the larva of a type of Real World insect known as the antlion (these larvae are exclusively known as doodlebugs), who are quite well-known for digging pits in sand and devouring any insects that fall in.