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Sylvia Juzwa sent this photo of her son Dalston with four monarch butterflies. A neighbor collected eight caterpillars from her milkweed and gave them to Dalston and his twin brother Dylan, rising second-graders at Washington School.

“Dalston and Dylan [not pictured] are incredibly into nature and say they want to be naturalists and scientists,” Ms. Juzwa told the RoundTable. “We were even lucky enough to catch one of the butterflies going into chrysalis, which is amazing and is complete in about two minutes.  I, for one, have learned a ton from their explorations.”