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Great Migrations: Butterflies

National Geographic Readers Great Migrations: Butterflies

Author : Marsh, Laura

Each year, as the weather gets colder, monarch butterflies make a mass migration to their winter homes. For them, this trip means life or death. As the air cools, butterflies have a hard time flying. Below 55 degrees farenheit, their wings stiffen making it harder for them to fly long distances. Below 40, their wings paralyze completely.
$6.64
  • Author:
  • Marsh, Laura
  • ISBN:
  • 142630739X
  • isbn-13
  • 9781426307393
  • Publisher:
  • National Geographic Society
  • Cover:
  • Paperback
  • Pub. Year:
  • 15-11-2010
  • SKU
  • 9781426307393
  • Number of Units
  • 01
  • Pages:
  • 48