There is substantial difference on the nature of the colossus. Arctic icebergs are broken off in spikes and spires from a narrow glacial tongue, while Antarctic ice masses are flat slabs rent from shelves of fossil snow. The article focuses primarily on B-15, that is the largest iceberg ever recorded. Five large chunks has broken off since March. Background Humpback whales from Antarctica to Gabon Marine biologist Jim Darling has observed more than 70 humpback whales, including several calves, near the Gold Coast of Africa.
Hawaiian waters are the favourite breeding grounds for Arctic humpbacks.
Darling now indicates that the quiet and protected waters off Gabon constitute a favourite wintering and breeding area for Antarctic humpback whales. The paradox is that the favourable environment near Gabon apparently is due to the many oil rigs in the area. Whaling was banned in 1966, and over the last 40 years scientists estimate that the population of humpbacks has risen 12-13 percent. National Geographic NASA finds largest ozone hole ever Scientists at NASA's Goddard Space Flight Center have found the largest hole in the ozone layer so far. The hole is above Antarctica and has been measured to be 29,5 million square km.