1 Myotonic (also called MMD or Steinert's disease). 2  The most common form of muscular dystrophy in adults, myotonic muscular dystrophy affects both men and women, and it usually appears any time from early childhood to adulthood. 3  In rare cases, it appears in newborns (congenital MMD).
There are around 66 scientific bases in Antarctica, of which about 37 are occupied year round. There are about 4,000 people through the summer months and about 1,000 overwinter each year.
Antarctica Penguins Facts There are just 17 species of penguin worldwide, 4 of these live and nest on and around the Antarctic continent and a further 3 live and nest on Antarctic and sub-Antarctic islands, giving 7 species that can be considered Antarctic Penguins.