The Ultimate Sleeping Creatures Quiz
by Staff
Sweet sleep may restore the human body and mind, but how does sleep affect other organisms? You may be surprised to learn about the sleep habits of giraffes and some other creatures. Take this quiz to learn about the sleeping habits of all creatures.

What happens during sleep?

  • decrease in physical activity
  • less reaction to outside stimuli
  • both answers

What posture do bats assume while sleeping?

  • hang upside down
  • lying down
  • standing up

What posture may horses assume while sleeping?

  • standing up
  • hanging upside down
  • neither answer

How much sleep do giraffes require?

  • 30 minutes
  • 4 hours
  • 15 hours

Which animal sleeps for close to 20 hours per day?

  • brown bat
  • horse
  • human

What mammal baby hardly sleeps during its first few months of life?

  • baby orca
  • baby bottlenose dolphin
  • both answers

What part of the brain goes into sleepy-time mode during unihemispheric sleep?

  • 10 percent
  • 25 percent
  • 50 percent

What animals practice unihemispheric sleep?

  • whales
  • dolphins
  • both answers

How much sleep may fish need during a 24 hour period?

  • 2 hours
  • 4 hours
  • unclear if fish sleep

What is an example of a state of reduced consciousness?

  • sleep
  • hibernation
  • both answers

Which state of reduced consciousness is easily reversible?

  • sleep
  • coma
  • hibernation

What is an electroencephalogram?

  • record of brain activity
  • record of heart activity
  • record of lung function

What circumstance may interrupt a bird's sleep pattern?

  • migrating
  • mating
  • giving birth

What is a short sleep that can have revitalizing powers?

  • deep sleep
  • power nap
  • both answers

How do you incur a sleep debt?

  • not enough sleep
  • enough sleep
  • too much sleep