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NASA Canaries

Science brain teasers require understanding of the physical or biological world and the laws that govern it.

 

Puzzle ID:#2828
Fun:*** (2.96)
Difficulty:*** (2.23)
Category:Science
Submitted By:204_BlaZe_41****
Corrected By:sdm1177

 

 

 



NASA was considering sending canaries into space to study them under zero gravity. The project was scrapped when someone realized that in spite of having sufficient water supplies, they could die of dehydration within a few hours. Why?


Answer

Birds, unlike humans, need gravity to swallow. Humans can swallow even while hanging upside down.
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