CIRCULATORY SYSTEM

CIRCULATORY SYSTEM

If I tried to put an ad in the newspaper announcing houses that come with self-manufacturing plumbing and electrical systems, they would tell me I was writing science fiction, and refuse to print it. If I tried to have it printed in a science magazine, they would...
BONES

BONES

Bones are the framework for your body. If you did not have them, you would lie nearly motionless on the floor like a jellyfish. Your 206 bones are all perfectly shaped to do the right job and in the right way. Each bone is somewhat different from all the others, yet...
THE NERVOUS SYSTEM

THE NERVOUS SYSTEM

There are several other complicated body systems, such as the skin and the reproductive system, but we will conclude this chapter with the nervous system. Without nerves, your body could not send, relay, or receive any signals. Without nerves, you could not think or...
Pit Viper Heat Sensors

Pit Viper Heat Sensors

    Pit vipers detect heat using specialized pit organs located between the eyes and nostrils. Many animal  “sixth senses” help animals find food. For example, snakes known as pit vipers and pythons, as well as some boas, use infrared detectors called pit...
Shark Electricity Sensors

Shark Electricity Sensors

Sharks, as well as many other vertebrates that live in the water, can locate other creatures with the aid of electroreception. This means they can detect electrical impulses.   Sharks detect bioelectric fields with sensory cells, called ampullae of Lorenzini....
3-D Pigeon Magnets

3-D Pigeon Magnets

Even when your world is full of light, it can be difficult to find your way. An impressive method of navigation, used by pigeons, is called magnetoreception. Homing pigeons can detect the earth’s magnetic field and use it as a map to find their way home using...