Bill Thrune - USFWS
Signs of Spring Everywhere Signs of Spring Everywhere
  • Challenge Questions
  • Field Data
  • Journey North News
  • Related Resources

    Today's News
    Today's News

    Migrations and Signs of Spring
    Migrations and
    Signs of Spring

    Report Your Sightings
    Report Your Sightings

    Teacher Discussion
    Teacher Discussion

    Search Journey North
    Search Journey North

    return to:
    JNorth Home Page

    A/CPB Home A/CPB

  • Challenge Question #1

    Patty O'Brien (
    Wed, 5 Feb 1997 09:10:02 -0700 (MST)

    Because the state of Arizona has no groundhogs, we have opted to use "Aqua
    Fria Freddie" as a method to determine the extent of winter. Because Freddie
    is a rattlesnake - therefore an ectotherm - he serves as a good indication
    of the departure of winter!

    Submitted by Karen Schedler, Education Dept./The Phoenix Zoo