23,OOO YEAR OLD

Instead of deleting these sites after awhile, I 'stuff ' them in here because there cool!

Species Approximate Range (Hz) 
human 64-23,000
dog 67-45,000 
cat 45-64,000 
cow 23-35,000 
horse 55-33,500 
sheep 100-30,000 
rabbit 360-42,000 
rat 200-76,000 
mouse 1,000-91,000 
gerbil 100-60,000 
guinea pig 54-50,000 
hedgehog 250-45,000 
raccoon 100-40,000
ferret 16-44,000 
opossum 500-64,000 
chinchilla 90-22,800 
bat 2,000-110,000 
beluga whale 1,000-123,000
elephant 16-12,000 
porpoise 75-150,000
goldfish 20-3,000 
catfish  50-4,000 
tuna  50-1,100 
bullfrog  100-3,000 
tree frog 50-4,000 
canary  250-8,000 
parakeet  200-8,500 
cockatiel 250-8,000 
owl  200-12,000 
chicken  125-2,000

SkyLight

http://telescope.livjm.ac.uk/TelInst/Inst/SkyCam/