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Penguins_essay_10Kbirds_2011_09.pdf
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🔗 Source: 10000birds.com
📊 Size: 117 KB
👤 Author: Greg Laden
⬇️ Downloads: 93

Summary

Penguins are flightless birds that "fly" underwater, with 17 living species, and are found mostly in the southern hemisphere. They have unique adaptations like special feathers, beaks, and the ability to hold their breath for long periods. The evolution of penguins is well-studied, and recent research on fossils of a giant extinct penguin found in Peru shows that ancient penguins were large, swam underwater, and hunted, but did not have the distinctive black and white "tuxedo" coloration of modern penguins. The study suggests that the black and white coloration evolved later, possibly as a response to the evolution of highly effective mammalian predators like seals and whales.

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Description

Penguins are flightless birds that "fly" underwater, with 17 living species, and are found mostly in the southern hemisphere.

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  • File Format: PDF
  • File Size: 117 KB
  • Pages: 2
  • Language: EN
  • Author: Greg Laden
  • Total Downloads: 93
  • Last Updated: 3 weeks ago

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