Calvin and Hobbes by Bill Watterson for August 07, 1987

Transcript:

Bat (Calvin): One of nature's uglier creatures, the bat is a misunderstood marvel of evolution. Producing a series of loud, high pitched squeaks, the bat can judge an insect's distance and elevation by the time delay of the squeak's echo! Changes in the echo's pitch reveal the direction! No movement escapes the incredible senses of the bat! Glump! Ta-daa! Eyes closed! Dad: Calvin, sit up and eat with a fork like a civilized human being.