Here is a very long list of "useless information" that might come in very handy if you were ever called to appear on some game show
somewhere...or if you are the curious type that find these type of things rather interesting. Enjoy :)
http://www.angelfire.com/nc3/dshunting0/apages/animalfactspage3.html

"If you could count the number of times a cricket chirps in one minute, divide by 2, add 9 and divide by 2 again, you would have the correct temperature in Celcius degrees."

What happens when the temperature is below 4.5 degrees Celsius? Does the cricket begin anti-chirping? If chirps and anti-chirps collide, do they explode violently and annihilate each other?