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Challenge Question # 6 Mt. Vernon Elem. (eforce@mindspring.com) Wed, 18 Mar 1998 14:02:42 -0500 (EST) Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: DON REED: "challenge #6" Previous message: : "" The butterflies should know by when the days get shorter or longer or when the temperature changes If they left too early then it still might be too cold to survive If they left too late then it might affect there travel & for if they leave too early or too late then the timing would be bad & they would lose track. Next message: DON REED: "challenge #6" Previous message: : ""