A cat's urine glows under a black light. See more

Dolphins sleep with one eye open. See more

25% of all fires of unknown origin are rat-caused. See more

In rural areas, there are more insects in 1 square mile than there are humans on earth. See more

One quarter of all creatures on the planet are beetles. See more

Lobsters have pale blue blood. See more

Dolphins have bigger brains than the brains of humans See more

26% of all electric cable breaks and 18% of all phone cable disruptions are caused by rats. See more

The cockroach has a high resistance to radiation and is the creature most likely to survive a nuclear war. See more