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?

Birds, unlike humans, need gravity to swallow. Humans can swallow even while hanging upside down.
Bird Facts Riddle Meme.
Bird Facts Riddle Meme with riddle and answer page link.
A fun collection of Christmas and Holiday themed riddles, brain teasers and Jokes. Share with family and co-workers. Ho Ho Ho! Festive Riddles About Christmas!
Kids riddles for each letter of the alphabet A-Z. Can you guess the answers? Play as a riddle game or use as a fun classroom riddle quiz! Download as a PDF or Print.
Word play riddles, Fantastic! The best riddles about words. Nobody has a better collection of word play riddles. A tremendous riddle quiz. Historic! Enjoy! Download or Print!