Why Do Horses Sleep Standing Up?

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Why Do Horses Sleep Standing Up?

We know animals have to sleep but not all animals experience sleep in the same way humans do!  This week Lillie wants to know, Why Do Horses Sleep Standing Up? Join Alexis in this week’s Ask A DOer as she explores why horses sometimes sleep standing up.

Terms You’ve Learned:

Herbivores - Animals that eat plants—such as lemmings, deer, elephants, and zebras—are called herbivores. 

Polyphasic Sleeping – sleeping 2 or more times within a 24 hours period.  

STAY Apparatus – a group of ligaments, tendons, and muscles which “lock” joints in the legs of a horse, which allows the horse to enter a light sleep while standing up. 

REM Sleep – The deep restful stage of sleep where the heart beats faster and your breathing is less regular.  This is also the stage when people dream! 


Is there a question your kids want as a DOer? Send your kids' questions to feedback@thedoseum.org for a chance to be featured in our Ask A DOer Series every Friday at Noon!   Be sure to include their name and age, video submissions are encouraged.


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