What Is a Sponge?
A sponge is an extremely simple kind of water animal with a soft, elastic skeleton. It has no head, mouth, or brain. Sponges hatch from eggs
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Eggs
Why Do Mexican Jumping Beans Jump?
Why Do Mexican Jumping Beans Jump? A jumping bean’s movement is caused by a larva, or caterpillar, wriggling around inside it. The “beans” a
Does an Ostrich Hide Its Head When It Is Frightened?
Does an Ostrich Hide Its Head When It Is Frightened? No, an ostrich doesn’t hide its head when it is frightened. According to this old belie
Where Do Insects Go in Winter?
Where Do Insects Go in Winter? In parts of the world where winters are cold, most insects die at summers end. But they leave many eggs to ha
Where Do Flies Go in the Winter?
Where Do Flies Go in the Winter? Most flies live their lives in spring and summer, and then die. In cold climates, only a few adult flies hi