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Penguins Of Antarctica

Published on Nov 18, 2015

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PRESENTATION OUTLINE

PENGUINS OF ANTARCTIA

BY ALIYAH HALL
Photo by peterp

SPECIES

  • There are 7 species of Antarctic penguins.
  • Adelie, Chinstrap, Emperor, Gentoo, King, Macaroni and Rockhopper
  • The first 4 species are true Antarctic species because they breed on the Antarctic continent
  • The King, Macaroni and Rockhopper breed on sub Antrctic regions
  • There are 29 million penguins in Antarctica.
Photo by Jorval

BREEDING

  • Penguins breed in large colonies called rookeries.
  • They build nests of stone and incubate one or two eggs.
  • Penguins are experiencing a population boom.
  • This is due to an abundance of krill.
  • Emperor and king penguins keep the egg covered by a pouch.
Photo by Taraji Blue

NESTING

  • King and emperor penguins use a simple pile of stones as a nest.
  • The nests are slightly higher than the surrounding land.
  • This is to protect the eggs from flooding if the temperature rises and the snow melts.
  • The stones used to build the nests are stolen and swapped between the colony.
  • Penguin colonies are loud, busy and smelly.
Photo by mckaysavage

PREDATORS

  • Leopard seals are the penguins main predator.
  • Skuas are a threat to eggs and unguarded chicks.
  • Seagulls.
  • Giant petrels (a sea bird).
  • Killer whales.
Photo by kthypryn

CLIMATE AND HABITAT

  • Pengiuns live in water most of the time. Temperatures can reach -90c.
  • They are warm-blooded.
  • They keep warm in the water due to a layer of fat under the skin.
  • On the land their feathers keep them warm.
  • They huddle in groups of several thousand penguins to keep warm.

BEHAVIOUR

  • The emperor penguin is a social animal.
  • Penguins can be active day or night.
  • They hunt in groups. There are no leaders in the colony.
  • Penguins improve their appearence by preening their feathers.
  • A gland in their tail produces oil,they use their bill to put this on their feathers.

DIET

  • Penguins eat krill, an animal similar to shrimp, fish and squid.
  • The main food groups are crustaceans and cephalopods.
  • Female penguins feed the hatchlings by chewing the food and putting it in their mouths.
  • All their diet comes from the ocean.
  • During winter male penguins fast while protecting the eggs.
Photo by n0wak

OCEAN HABITS

  • Penguins drink sea water.
  • They spend half their life in water, the other half is on land.
  • Emperor penguins can spend 20 minutes underwater.
  • Their colours act as a camouflage in the water.
  • They have powerful flippers and streamlined bodies make which makes them very fast swimmers.
Photo by Geophaps

LIFESPAN

  • Penguins live on average for 15-20 years.
  • Global warming changes the distribution of food sources.
  • Global warming also causes rising temperatures which reduces breeding grounds.
  • The population will decline rapidly over the next 3 generations due to climate change.
  • Emperor penguins are considered to be a threatened species.
Photo by eliduke

INTRESTING FACTS

  • Several million years ago penguins lost the ability to fly.
  • Penguins eyes work better underwater than they do on land.
  • They don't chew their food, they swallow it whole.
  • They are very playful and go tobogganing.
  • When they find a mate, they sing to each other to recognise their voices.
Photo by EarthTouch

HISTORY

  • Penguins adapted to the harsh conditions of Antarctica
  • Antarctica broke off Gondwanaland 40-50 million years ago.
  • The female and male relationship lasts for 5 years.
  • The males present females pebbles as gifts in the courting process.
  • Scientists are discovering bones from extinct species.
Photo by Heather F