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A fish that walks on land, a frog that makes its own sunscreen, and an insect that can become invisible? Whether to avoid predators, to stalk prey, or to withstand extreme temperatures… Read More →
Reduce, reuse, and recycle with ideas from The Craft-a-Day Book. You can put the three Rs to work with these thirty awesome crafts! Using recycled and reusable materials from around the… Read More →
Vaccines are biological substances that cause the human immune system to build up its defenses against specific diseases. Public health officials recommend a series of vaccines for all… Read More →