Only male fireflies can fly.
46
Bats always turn left when exiting a cave.
40
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
The 'vintage date' on a bottle of wine indicates the year the grapes were picked, not the year of bottling!
38
Salmon can jump as high as 6 feet.
40
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
The largest earthworm on record was found in South Africa and measured 22 feet.
151