The average capacity of a pelican's pouch is 12 quarts.
The expression "knuckle down" originated with marbles - players put knuckles to the ground for their best shots.
The sensitivity of the human eye is so keen that on a clear, moonless night, a person standing on a mountain can see a match being struck as far as 50 miles away. Much to their amazement, astronauts in orbit were able to see the wakes of ships.
Bull giraffes forage higher in trees than cow giraffes which reduces food competition between the sexes. Long-legged giraffes walk with the limbs on one side of the body lifted at the same time. This gait is called a pace and allows a longer ...
Some crickets burrow megaphone-like tunnels that help transport the sound of their chirps as far as 2,000 feet away.
Tourists who are eager to visit recently erupted volcanoes while on vacation should take heed. Volcanic ash has been known to remain hot for a period of nearly one hundred years.