The Loveland Frog
In 1955, a businessman reported seeing a frog-faced humanlike creature under a bridge in Loveland, Ohio. Nearly 20 years later, local police reportedly sighted the elusive creature, dubbed the Loveland Frog, and unsuccessfully attempted to shoot it. One of the officers allegedly described the creature as standing 3 to 4 feet tall, weighing between 50 to 75 pounds, having leathery skin, a frog- or lizard-like face, and, possibly, a tail. What are some explanations for these sightings?

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Zombie Computers
A zombie computer, or zombie, is a computer attached to the Internet that has been compromised by a hacker, computer virus, or trojan horse. Generally, a compromised machine is only one of many in a network of remotely controlled computers used to perform malicious tasks. Most owners of zombie computers are unaware that their systems are being used in this way, but the damage caused by such systems can be devastating. Approximately what percent of the world's spam is sent from zombie computers?