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Grade 8 reading · Information

Built For Survival: the Emperor Penguin

Picture trying to survive in the ice and cold seas of Antarctica. For many animals, a habitat like this would be impossible. Yet the emperor penguin, a bird about 1.1 meters tall, thrives there, thanks to features that scientists call adaptations: traits that help a living thing survive in its environment.

Consider tightly packed, waterproof feathers: this adaptation trap warm air and keep out icy water. The word waterproof refers to able to keep water out. Equally important is flippers instead of flying wings, which help it swim fast and dive deep. Without these traits, the emperor penguin would struggle to last a single season.

As a carnivore, the emperor penguin is an animal that eats other animals; it depends on fish, squid and krill. Its behavior matters as much as its body: it huddles in huge groups to share warmth during winter storms. Behaviors like this are adaptations too, even though you cannot see them in a photograph.

The next generation faces the same challenges. Young emperor penguins, called chicks, depend on their surroundings and on adult care. The father keeps the egg warm on his feet for about two months while the mother hunts at sea.

Perhaps most remarkable of all: emperor penguins can dive deeper than 500 meters to find food. Facts like this remind us that every animal's body tells a story about the place it lives.

Questions

  1. Details Where does the emperor penguin live?
  2. Details Which of these does the emperor penguin eat?
  3. Cause and effect According to the passage, how does the emperor penguin use tightly packed, waterproof feathers?
  4. Main idea What is paragraph 3 mostly about?
  5. Vocabulary The passage says the emperor penguin is a carnivore. What is a carnivore?
  6. Vocabulary In the passage, what does the word "waterproof" mean?
  7. Evidence Which sentence from the passage best supports the idea that the emperor penguin's body suits its home?
  8. Inference Based on the passage, why would the emperor penguin have trouble surviving somewhere deep and salty?
  9. Vocabulary As used in the passage, what is an adaptation?
  10. Author's purpose Why does the author describe how the emperor penguin huddles in huge groups to share warmth during winter storms?
  11. Text structure How does the author organize the passage?

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