Southern rockhopper penguin species to survive. Penguins are able to live and thrive in a variety of climates due to the penguins' phenotypic plasticity. However, they are predicted to respond by dispersal, not adaptation this time. This is explained due to their long life spans and slow microevolution. Penguins in the subantarctic have very different foraging behavior than the subtropical waters, it would be very hard to survive and keep up with the fast changing climate because these behaviors took years to shape. The southern rockhopper penguin group is classified as vulnerable by the IUCN. Its population has declined by about one-third in
Fitcher's Bird as sign of disobedience"). Among Grimm's fairy tales, the forbidden door features here and in "Mary's Child" (AT 710), as have been remarked in the notes to that tale. Some European variants of the ballad "Lady Isabel and the Elf Knight", Child ballad 4, closely resemble this tale. Fitcher's Bird "Fitcher's Bird" (German: "Fitchers Vogel") is a German fairy tale collected by the Brothers Grimm, tale number 46. It is Aarne-Thompson type 311, the heroine rescues herself and her sisters. Another tale of this type is "How the Devil Married Three Sisters". The Brothers Grimm noted its close similarity to