There are more than 100 million dogs and cats in the United States.

Americans spend more than 5.4 billion dollars on their pets each year.

Cat's urine glows under a black light.

The largest cockroach on record is one measured at 3.81 inches in length.

It is estimated that a single toad may catch and eat as many as 10,000 insects in the course of a summer.

Amphibians eyes come in a variety shapes and sizes. Some even have square or heart-shaped pupils.

It would require an average of 18 hummingbirds to weigh in at 1 ounce.

Dogs that do not tolerate small children well are the St. Bernard, the Old English sheep dog, the Alaskan malamute, the bull terrier, and the toy poodle.

Moles are able to tunnel through 300 feet of earth in a day.

Howler monkeys are the noisiest land animals. Their calls can be heard over 2 miles away.

A quarter of the horses in the US died of a vast virus epidemic in 1872.

The fastest bird is the Spine-tailed swift, clocked at speeds of up to 220 miles per hour.

There is no single cat called the panther. The name is commonly applied to the leopard, but it is also used to refer to the puma and the jaguar. A black panther is really a black leopard.

A capon is a castrated rooster.

The world's largest rodent is the Capybara.

An Amazon water hog that looks like a guinea pig, it can weigh more than 100 pounds.

The poison-arrow frog has enough poison to kill about 2,200 people.