Antarctica Yields Fossils of Giant Birds : Daily Current Affairs

Antarctica Yields Fossils of Giant Birds

IN NEWS

  • Scientists have identified the fossil of a giant bird that lived about 50 million years ago, with wingspans of up to 21 feet that would dwarf today’s largest bird, the wandering albatross.

ABOUT

  • The fossils recovered from Antarctica in the 1980s represent the oldest giant members of an extinct group of birds that patrolled the southern oceans and Called Pelagornithids, the birds filled a niche much like that of today’s albatrosses and travelled widely over Earth’s oceans for at least 60 million years.
  • Pelagornithids are known as ‘bony-toothed’ birds because of the bony projections, or struts, on their jaws that resemble sharp-pointed teeth, though they are not true teeth, like those of humans and other mammals.

ANTARCTICA

  • Antarctica is Earth's southernmost continent. It contains the geographic South Pole and is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by the Southern Ocean.
  • At 14,200,000 square kilometers (5,500,000 square miles), it is the fifth-largest continent and nearly twice the size of Australia. Antarctica, on average, is the coldest, driest, and windiest continent, and has the highest average elevation of all the continents.

INDIAN ANTARCTIC PROGRAM

  • The Indian Antarctic Program is a multi-disciplinary, multi-institutional program under the control of the National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Government of India. It was initiated in 1981 with the first Indian expedition to Antarctica.
  • The program gained global acceptance with India's signing of the Antarctic Treaty and subsequent construction of the Dakshin Gangotri Antarctic research base in 1983, superseded by the Maitri base from 1989. The newest base commissioned in 2012 is Bharati, constructed out of 134 shipping containers.