Mummified seals can be found all over the Dry Valleys. It is believed that the seals came from the seas ice into the Dry Valleys . It is not known why exactly seals end up far away from the sea ice. Explanations could be that they become disorentiated due to sickness or bad weather conditions, and starve to death.
Due to dry air and slow degradation processes in Antarctica the seal carcasses mummify and are thought to be hundreds of years old.
Mummified seal near Canada glacier and Lake Fryxcell
Mummified seal near Koettlitz glacier