Hibernation Non-Fiction

Determine the best summary of the passage.

• Animals have limited strategies for surviving in winter, so many die. 

  
  

• Migration, hibernation, and adaptation are strategies animals use to survive winter. Migration helps animals find food, hibernation saves energy, and adaptations keep animals warm or hidden from predators.

  
  

• Animals change their behaviors in winter, and some mammals like bears sleep, while others, like birds, fly away. Reptiles also do something similar to sleeping, called brumation.

  
  

• Some animals hibernate in winter, while others migrate. Many birds migrate, while mammals hibernate in dens, and predators rely on their senses to find food.

Which sentence from the passage best supports the idea that hibernation helps animals survive winter?

• "When spring arrives, they thaw out and continue their normal lives."

  
  

• "During hibernation, an animal’s heart rate and breathing slow down significantly, and its body temperature drops."

  
  

• "Migration remains one of the most effective ways for animals to survive harsh winters."

  
  

• "Birds that stay in cold regions, such as chickadees and owls, fluff up their feathers to trap warm air close to their bodies."

What is the relationship between migration and food availability?

• Animals migrate to escape predators, not to find food.

  
  

• Migration allows animals to reach places where food is more plentiful in the winter.

  
  

• Migration is dangerous because there is never food along the way.

  
  

• Animals migrate in daylight because it is easier to find food. 

Which detail best supports the idea that animals have multiple ways to survive the winter?

• "Winter is one of the most difficult seasons for animals, but they have evolved incredible ways to survive."

  
  

• "Birds like geese, swallows, and monarch butterflies fly thousands of miles to warmer climates, following seasonal patterns."

  
  

•  "Squirrels and chipmunks collect nuts and seeds in the fall, storing them in hidden locations to eat later."

  
  

• "Even cold-blooded animals have ways to survive extreme temperatures."

How does the author structure the passage to explain how animals survive winter?

• By listing different animal species and their behaviors

  
  

• By comparing animals that migrate, hibernate, or adapt

  
  

• By providing a sequence of events that happen during winter

  
  

• By telling a story about a specific animal’s survival