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69 Fun Facts About . . .

Penguins

  1. Penguins are one of about 40 species of flightless birds. Other flightless birds include rheas, cassowaries, kiwis, ostriches, and emus. Most flightless birds live in the Southern Hemisphere.a
  2. Most scientists agree that there are 17 species of penguins. Of the 17 species, 13 are either threatened or endangered, with some on the brink of extinction.f
  3. The Erect-crested Penguin (Eudyptes sclateri) has lost approximately 70% of tis population over the last 20 years. The Galapagos Penguin (Spheniscus mendiculus) has lost over 50% since the 1970s, and their chance of becoming extinct this century is 30%. The most common threats to all penguin survival are pollution, loss of habitat by human encroachment, commercial fishing, oil dumping, algae booms, and global warming.c
  4. Generally, penguins are not sexually dimorphic, meaning male and female penguins look alike.a
  5. Penguin sliding Penguins travel faster by tobogganing than by running
  6. Penguins often slide on their tummies over ice and snow. This is called tobogganing. Researchers believe they do this for fun and as an efficient way to travel.a
  7. The Magellanic Penguin (Spheniscus magellanicus) is named after Ferdinand Magellan, who first saw them in 1520. Oil spills kill approximately 20,000 adult and 22,000 juvenile Magellanic Penguins off the coast of Argentina every year.b
  8. Penguins find all their food in the sea and are carnivores. They eat mostly fish and squid. They also eat crustaceans, such as crabs, shrimp, and krill. A large penguin can collect up to 30 fish in one dive. Penguins (and any animal) that eat only fish are called piscivorous.b
  9. Penguins do not have teeth. Instead they use their beak to grab and hold wiggling prey. They have spines on the roof of their beak to help them get a good grip. Penguins even have spines on their tongues.b
  10. Penguins swallow pebbles and stones as well as their food. Scientists believe that the stones may help grind up and digest their food. The stones may also add enough extra weight to help penguins dive deeper.b
  11. Penguins spend several hours a day preening or caring for their feathers. If penguins don’t keep them well maintained, their feathers would not stay waterproof. For extra protection, penguins spread oil on their feathers. The oil comes from a special gland near their tail feathers.c
  12. moulting penguin Unlike most birds, penguins molt all their feather at once
  13. Penguins molt, or lose their feathers, once a year. They always molt on land or ice and until they grow new waterproof coats, they are unable to go into the water. Molting may take weeks, and most penguins lose about half their body weight during this time.c
  14. All penguins live in the Southern Hemisphere, from Antarctica to the warmer waters of the Galapagos Islands near the equator. They can be found on every continent in the Southern Hemisphere. No penguins live at the North Pole.a
  15. The penguin with the highest number of species is the Macaroni Penguin, with approximately 11,654,000 pairs.c
  16. Penguin nesting areas are called “rookeries” and may contain thousands of pairs of birds. Each penguin has a distinct call, which allows individual penguins to find their mates and chicks even in the largest groups.b
  17. Penguins are highly social birds. Even at sea, penguins usually swim and feed in groups. Some penguin colonies on Antarctica are huge and can contain 20 million or more penguins at various times during the year.a
  18. Out of all the penguin and bird species, the Emperor Penguin (Aptenodytes forsteri) breeds in the coldest environment. Air temperatures may reach -40° F (-40° C) and wind speeds may reach 89 mph (144 km/hr).c
  19. A penguin’s normal body temperature is approximately 100° F (38° C).c
  20. Emperor Penguins are the fifth heaviest of all bird species, although an adult male will lose about 26 pounds while he waits for a penguin chick to hatch.c
  21. Emperor Penguins have the longest uninterrupted incubation time of any bird at 64?67 days.f
  22. Emperor Penguins have the widest variety of vocalizations of all penguins. Scientists believe this is because they have no fixed nest site and must rely on vocal calls alone to find their chicks and mate.b
  23. Most penguin species breed during the spring and summer. Egg incubation varies from 1 month and 67 days, depending on the species. The Emperor Penguin is the only penguin that breeds during the Antarctic winter.a
  24. penguin swim Penguins can stay under for up to 15 minutes
  25. Penguins can stay underwater for 10?15 minutes before coming to the surface to breathe. Penguins cannot breath underwater.a
  26. Most penguins can swim 5?6 miles per hour, and some can have bursts of speed of up to 15 mph. They can walk between 1.7 mph and 2.4 mph.b
  27. In 2012, scientists discovered that a primary reason penguins can swim so fast is that they have a special “bubble boost.” When penguins fluff their feathers, they release bubbles that reduce the density of the water around them. The bubbles act as lubrication that decreases water viscosity, similar to competitive swimsuits.g
  28. Even though penguins spend much of their lives at sea, they all return to land to lay eggs.a
  29. Emperor Penguins are the largest penguins in the world and stand up to 4 feet (1.2 m) high and weigh as much as 100 pounds (45.3 kg).c
  30. King Penguins (Aptenodytes patagonicus) are second in size only to Emperors. A King is almost 3 feet tall and can weigh nearly 35 pounds. Kings don’t waddle the way most penguins do. Instead, they run fairly quickly on their feet.b
  31. King Penguins can form nesting colonies of up to 10,000 penguins. Each penguin keeps it neighbor at an exact but close distance.b
  32. Gentoo Penguins (Pygoscelis papua) can grow up to 30 inches tall and weigh up to 13 pounds. They are different than other penguins because they have a colorful orange bill, and no other penguin has such a big tail.c
  33. Macaroni Penguins (Eudyptes chrysolophus) get their name from the long, orange, yellow, and black feathery crests above their eyes. They were named after “macaroni dandies,” whose hairstyle was fashionable in the 18th century. a
  34. Little (a.k.a. Blue or Fairy) Penguins (Eudyptula minor) are the smallest of all the penguins. They stand 16 inches high and weigh just 2 pounds. They live in the warmer waters around Australia, Tasmania, and New Zealand.f
  35. Penguins’ eyes work better under water than they do in air. Many scientists believe penguins are extremely short-sighted on land.c
  36. Yellow-eyed Penguins (Megadyptes antipodes), the third-largest penguins, have yellow cat-like eyes. They live along the coastal shores of New Zealand and neighboring islands.a
  37. Penguins that live in and around Antarctica tend to survive in large numbers. Penguins that live in more temperate climates are more likely to suffer population declines.c
  38. Only two species, the Adélie (Pygoscelis adeliae) and the Emperor Penguins, live on the frozen land of Antarctica. Most penguins live farther north, in New Zealand or along the coast of South America.a
  39. The Galapagos Penguin lives farther north than any other penguin and is the only penguin that might venture into the Northern Hemisphere.b
  40. To keep from overheating, penguins pant like dogs to cool off. They also ruffle their feathers and hold their wings away from their bodies.c
  41. Penguins’ unique coloring is called countershading. To predators looking down from above, the penguins’ black backs help them blend into the dark ocean. To predators looking up from underwater, the penguin’s white belly blends in against the light sky and snow.b
  42. Gentoo Penguin stones Penguin chicks are not waterproof
  43. Different penguins species have different ways of attracting a mate. King Penguins, for example, sing long songs with their partners. Gentoo Penguin males give their mates gifts of small pebbles or stones. For penguins, bonding is an important part of raising a chick.b
  44. Most penguin species lay two eggs. However, Emperor and King Penguins, the two largest species, build no nest at all and lay just a single egg. They warm their eggs on their feet and cover it with a flap of skin called a “brood pouch.”b
  45. When penguin chicks hatch, they are not waterproof, so they must stay out of the ocean. They depend on their parents to bring them food and to keep them warm until waterproof feather replace their fluffy down coats.a
  46. In the past, people ate penguin eggs. They also killed adult penguins for their feathers, skin, and oil. People also used penguin droppings (guano) to fertilize the soil and help grow crops. While this seems harmless, some penguins use guano to make their nests. When the guano was gone, they had to lay their eggs on the bare ground, where they were more susceptible to predators.a
  47. Larger penguins usually live in cooler regions. Smaller penguins are typically found in more temperate and tropical climates.c
  48. Some prehistoric penguins were very large, growing nearly as tall and heavy as a human.a
  49. Penguin etymology is debated. Several scholars claim the word is derived from the Welsh pen gwyn, or “white head.” It originally appeared in the 16th century as a synonym for Great Auk. Other researches believe it is related to the Latin pinguis, or “fat.”c
  50. The earliest known penguin fossil is the Waimanu manneringi, which dates from about 60 million years ago. The fossil was discovered in Antarctica in 1980. Its name comes from Maori term for “water bird.” They were also flightless birds.a
  51. Smaller penguins usually do not dive as deep as larger penguins. Larger penguins, such as Emperor Penguins, can dive as far as 1,870 feet for as long as 22 minutes, making it the deepest-diving nonflying bird and the longest submerged bird. An Emperor Penguin has solid bones rather than air-filled bones, which eliminates the risk of barotrauma. Their heart rate slows to 15-20 beats per minute and nonessential organs shut down during long dives.c
  52. Penguins can control the blood flow to their extremities in order to reduce the amount of blood that gets cold, but not enough so that their extremities freeze.c
  53. Penguins can drink salt water because they have a special gland, the supraorbital gland, that filters salt from the bloodstream.c
  54. An adult male Emperor Penguin is the longest-fasting bird. It will not eat for approximately 115 days during its chick’s incubation/hatching period.c
  55. Approximately 1 in 50,000 penguins is born with brown plumage rather than black. These are called isabelline penguins. They live shorter lives than other penguins because they are less camouflaged and often do not mate.c
  56. Most penguins are found in South Africa, New Zealand, Chili, Antarctica, Argentina, and Australia.a
  57. All penguins except the Emperor Penguin share incubation duties with their mate. Still, Emperor Penguins manage to get 75% of their young to self-sufficiency.b
  58. When compared proportionally to the weight of the parent birds, penguin eggs are smaller than any other bird species. Additionally, a penguin eggshell constitutes 10?16% of the weight of a penguin egg, most likely to minimize risk of breakage in rough environments.a
  59. A group of young penguin chicks is called a “crèche.” A group of penguins in the water is called a “raft.” A group of penguins on land is called a “waddle.” c
  60. Penguins typically are not afraid of humans.c
  61. emperor penguins More than 30 countries have featured the Emperor Penguin on their stamps
  62. Emperor Penguins are the main characters in the 2006 movie Happy Feet. And more than 30 countries have featured Emperor Penguins on their stamps.e
  63. Penguins have more feathers than most other birds, averaging approximately 70 feathers per square inch. The Emperor Penguin has the most of any bird, at around 100 feathers per one square inch.c
  64. Chinstrap Penguins (Pygoscelis antarcticus) get their name from a thin black line that circle under their chin, like a strap on a helmet. Chinstrap Penguin colonies may reach up to one million penguins. They are among the boldest and most aggressive of all penguins.c
  65. While Chinstrap Penguins look dignified and gentleman-like, their exceptionally loud cries have earned them the nickname “Stonecracker” penguins.
  66. The 2005 children’s book And Tango Makes Three, based on a true story, is about a homosexual Chinstrap Penguin couple in New York’s Central Park Zoo. The book is listed on the 15 Most Controversial Picture Books.d
  67. Penguins mate, nest, and raise their chicks in a place called a “rookery.”f
  68. Penguins lost their ability to fly millions of year ago. However, they are the fastest-swimming and deepest-diving species of any bird. Penguins are also the most aquatic of all birds.a
  69. The most rare penguin in the world is the Yellow-eyed Penguin, with only around 5,000 living in the wild. They live along the southeastern coast of New Zealand and nearby islands.f
  70. A wild penguin typically lives between 15?20 years, spending approximately 75% of their lives in the water.f
  71. The fastest underwater swimming bird is the Gentoo Penguin, able to swim up to 22 mph (36 km/h).f
  72. cheating penguins Many penguins are monogamous
  73. While some penguins mate for life or until a partner dies, some penguins often mate with new partners while the old ones are still alive and in the same colony. Some researchers have noted that male and female penguins sometimes “cheat” on their partners, even while they are nesting and raising young with another penguin.b
  74. Penguins usually enter and leave the sea in large groups. Scientists believe this is for “safety in numbers.” By blending into a crowd, an individual penguin may avoid catching the attention of a predator.b
  75. Penguins swim so fast that they can propel themselves over 7 feet (2 meters) above water. The technique they use to cue through waves like dolphins or porpoises is called “porpoising.”b
List of 18 Penguin Species c
Pygoscelis adeliae
Adélie
(Pygoscelis adeliae)
Antarctica
Spheniscus demersus
African (black-footed or jack-ass)
(Spheniscus demersus)
Southern coast of South Africa
Pygoscelis antarcticus
Chinstrap
(Pygoscelis antarcticus)
Antarctic and subantarctic islands
Aptenodytes forsteri
Emperor
(Aptenodytes forsteri)
Antarctica
Eudyptes sclateri
Erect-crested
(Eudyptes sclateri)
Subantarctic islands near New Zealand
Eudyptes pachyrhynchus
Fiordland
(Eudyptes pachyrhynchus)
New Zealand
Spheniscus mendiculus
Galapagos
(Spheniscus mendiculus)
Galapagos Islands
Pygoscelis papua
Gentoo
(Pygoscelis papua)
Subantarctic islands: Atlantic, Indian oceans
Spheniscus humboldti
Humboldt (Peruvian)
(Spheniscus humboldti)
Coast of Peru, South America
Aptenodytes patagonicus
King
(Aptenodytes patagonicus)
Subantarctic islands
Eudyptula minor
Little (or Blue or Fairy)
(Eudyptula minor)
Australia, New Zealand, South Atlantic islands
Eudyptes chrysolophus
Macaroni
(Eudyptes chrysolophus)
Sub-antarctic to Antarctic Peninsula
Spheniscus magellanicus
Magellanic
(Spheniscus magellanicus)
South American coast, Falkland Islands
Eudyptes schlegeli
Royal
(Eudyptes schlegeli)
Macquarie Island, south of Australia
Eudyptes robustus
Snares
(Eudyptes robustus)
Snares Island, New Zealand
Megadyptes antipodes
Yellow-eyed
(Megadyptes antipodes)
New Zealand


-- Posted February 26, 2013

References

a Brennan, Patricia. 2002. Penguins and Other Flightless Birds. Chicago, IL: World Book, Inc.

b Daigle, Evelyne. 2007. The World of Penguins. New York, NY: Tundra Books.

c Simon, Seymour. 2007. Penguins. New York, NY: Collins.

d SLJ Staff. “And Tango Makes Three’ Tops Most Challenged List, Again.” School Library Journal. April 12, 2011. Accessed: January 30, 2013.

e “Stamps Showing Emperor Penguin Aptenodyte forsteri.” Accessed: January 30, 2013.

f Stefoff, Rebecca. 2005. Penguins. Tarrytown, NY: Marshall Cavendish Benchmark.

g Walsh, Michael. “Scientists Solve the Mystery of Penguins’ Incredibly Fast Underwater Swimming Speed: A Secret Layer of Bubbles.” Daily News. October 20, 2012. Accessed: January 19, 2013.