Creepy Wager
Science brain teasers require understanding of the physical or biological world and the laws that govern it.
One day, John and Sue were out hiking. They saw a few tarantulas on the way. This gave John an idea to win some money. "Sue," he said, "I'll bet you five dollars that the tarantula over there can crawl without using its own leg muscles." Sue thought that she would win, but she didn't.
How can this be?
Answer
Tarantulas do not use muscles to move their legs. They control the amount of blood pumped into them to extend and retract their legs.
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Comments
kalliann   
Aug 03, 2004
| well that was a creepy little trivia fact |
MrIxolite   
Aug 05, 2004
| Bet you found it on the Web |
spookboy0   
Aug 05, 2004
| not really. i got it from a little nature book. |
pianofox   
Aug 13, 2004
| Cool, but even I knew the answer and i'm only 11. |
spookboy0   
Aug 13, 2004
| well, ain't that a kick in the nuts(this statement is not meant to offend nebody, so please, dont take it offensively. thnk u) |
Rashad   
Aug 14, 2004
| I don't know y the difficulty rate is too high cuz i found it very easy Maybe because i love science |
shandela  
May 02, 2005
| doesn't something have to have an internal skeleton in order to have muscles? |
onlyeeyore  
Jun 07, 2005
| I'll give myself half credit for knowing that spiders don't have muscles but not the way they really move their legs. Full credit to you for a good teaser! |
puppygirl1213   
Jun 14, 2005
| That is a little strange  |
haldir 
Aug 24, 2005
| I'm not sure about tarantulas but most spiders only EXTEND their legs by pumping blood(that's is why dead spiders often have their legs curled in. They pulled them in and could'nt get them out) |
bookworm91  
Nov 10, 2005
| cool. didnt no that!  |
calmsavior   
Feb 24, 2007
| i didnt know that... creepy indeed  |
Hungrygit  
Dec 07, 2007
| More trivia than a quiz. I suspected that they might not use muscles to move their legs, but you either know the answer or you don't. Nice test of knowledge though.  |
AndrewWalker   
Jul 02, 2008
| ew i hate spiders!!!! |
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