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Moths Fooling Predators Mating Butterflies Emerging Butterfly Caterpillar
 
moths

Moths

Moths Moths are close relatives of butterflies, but they differ from butterflies in certain ways. Moths have featherlike antennae, and when perched they fold their wings flat over their backs. Unlike most butterflies, moths also tend to have thick, hairy bodies and dull-colored wings. Moths

Fooling Predators

Fooling Predators These four insects look like the same kind of butterfly. But they are actually from different families— and one is not even a butterfly. Because birds and other predators don’t like the taste of the Ithomoiine butterfly, second from top, they avoid similar looking insects, including the Castniid moth, bottom. This survival strategy [...]

Mating Butterflies

Mating Butterflies When a male and female butterfly are ready to mate, they press the tips of their abdomens together, as shown in this photo. The pair may stay like that for several hours. Mating Butterflies

Emerging Butterfly

Butterfly Emerges Butterflies start out as caterpillars. When fully grown, a caterpillar forms a shell called a chrysalis. Inside the shell, the caterpillar slowly changes into a butterfly. Here, a colorful monarch butterfly emerges from its chrysalis. Butterfly Emerges

caterpillar

Caterpillar

Caterpillar Did you know that a butterfly begins its life as a caterpillar? The caterpillar eats leaves or other parts of plants and grows rapidly before going to sleep in a cocoon. When it awakens to break out of the cocoon, it is no longer a caterpillar but a butterfly! Caterpillar

Type of Cell

09 February 2014

Cell Animal Cell   All animals are made up of one or more cells. Animal cells all have the same basic structure, though they differ in how they look and what job they do.  Plant Cell Plants are made up of one or more cells. Each cell is surrounded by a sturdy wall and contains [...]

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About Cells

09 February 2014

Cells All plants and animals are made of cells. Most cells are much too small to see. It takes millions of cells, for example, to make just one of your fingers. Some tiny creatures, such as bacteria, are made of only one cell. If you want to see what a cell looks like, you could [...]

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Lung Cancer

09 February 2014

Lung Cancer Lung Cancer Cancer can attack any part of the body, including the lungs, shown here. Normal lung tissue is light pink in color, but cancerous lung tissue caused by smoking turns black. Radiation Treatment   Radiation is sometimes used to kill cancer cells. Here, a patient has radiation treatment for cancer of the [...]

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About Cancer

09 February 2014

Cancer   Cancer—it’s scary word, and a scary disease. Cancer kills a lot of people all over the world. Only heart disease kills more Americans. But there’s good news too. Millions of people who have had cancer are still alive. Doctors have learned a great deal about treating and preventing cancer. WHAT IS CANCER? Cancer [...]

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Parts of the Brain

09 February 2014

Brain Your brain is your body’s main control center. it controls thinking, emotions, and all the body’s activities that keep you alive. The brain looks like a soft sponge and is protected by a bony skull in the head. Nervous System   The nervous system is made up of the brain, the spinal cord, and [...]

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Brain and Nervous System

09 February 2014

Brain   What kind of supercomputer can write stories, do math problems, draw pictures, play games, see through eyes, hear someone talking, talk back, and network with devices that make snacks in the microwave oven? Your brain and nervous system can do all these things. Do you think a computer will ever be as powerful [...]

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Skeletal System

09 February 2014

Skeletal System   Your body contains 206 bones of various shapes and sizes. Bones protect your internal organs and support your body as you stand, sit, walk, and run. Common Fractures   A break in a bone is known as a fracture. In a greenstick fracture, the bone does not break all of the way [...]

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About Bones and Skeleton

09 February 2014

Bones And Skeleton   Squeeze your arm. The outside of your arm is soft, but there is a hard part inside. The hard part is a bone. There are bones in your arms and in your legs. Bones go up the middle of your back. They go around your chest. All of your bones together [...]

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Bacteria

09 February 2014

Bacteria   Bacteria are tiny, one-celled organisms that play an important part in all life on Earth. They come in three basic shapes—rod, sphere, and spiral. This bacterium is a spiral type known as a spirochete. Parts of a Bacterium   A bacterium is protected by an outer cell wall. Just inside the cell wall [...]

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About Bacteria

09 February 2014

Bacteria Peek into a clean room with no one in it. There are no pets in the room. There are no plants in the room. It looks like there is nothing alive in the room. The room, however, is swarming with life. Billions of tiny life forms called bacteria cover the tables and chairs and [...]

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