Goldfish can be seen in both INFRARED and ULTRAVIOLET lights

Photo courtesy: Pritam B. Debnath

A goldfish is the only animal that can be seen in both infrared and ultraviolet light. Goldfish are quite intelligent and will recognize the person who feeds them, research show that goldfish have a memory-span of at least three months and can distinguish between different shapes, colors and sounds. They will show they know you by swimming rapidly back and forth when you are near the tank or splashing.

Fact Factory Album


The largest snake ever lived was Titanoboa. It grew up to 42ft long and weighed over a ton
There are more than 1.4 billion insects for EACH HUMAN on the planet
Peregrine falcons are the fastest flying birds in the world–they are able to dive at 200 miles per hour
The housefly always buzzes in an F key
The cheetah can run as fast as 120km/h!
Koalas’ fingerprints are so close to humans that they can taint crime scenes
Cows kill more people than sharks
A Grizzly bear’s bite is strong enough to crush a bowling ball
Owls have no eyeballs
An ostrich’s eye is bigger than it’s brain