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Most snakes come from eggs. Female snakes lay eggs on the ground. They coil around the eggs to keep them safe. Birds come from eggs. Most birds lay eggs in a nest. It takes about two weeks for the eggs…
NASA plans to send astronauts to Mars in about 15 years. It will be the first time people have set foot on that planet. Read about how NASA is getting ready. A Cold, Dry Planet Mars is a cold place.…
