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Butterflies range in size from a tiny 1/8 inch to a huge almost 12 inches. Monarch butterflies journey from the Great Lakes to the Gulf of Mexico, a distance of about 2,000 miles, and return to the north again in the spring. Butterflies and insects have their skeletons on the outside of their bodies, called the exoskeleton. This protects the insect and keeps water inside their bodies so they don’t dry out.
Butterflies range in size from a tiny 1/8 inch to a huge almost 12 inches. Monarch butterflies journey from the Great Lakes to the Gulf of Mexico, a distance of about 2,000 miles, and return to the north again in the spring. Butterflies and insects have their skeletons on the outside of their bodies, called the exoskeleton. This protects the insect and keeps water inside their bodies so they don’t dry out.
http://en.wikipedia.org/wiki/Butterfly
http://www.kidsbutterfly.org/
http://www.enchantedlearning.com/subjects/butterfly/
http://www.thebutterflysite.com/facts.shtml
http://www.defenders.org/wildlife_and_habitat/wildlife/butterflies.php