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Wood Frogs Laying Eggs

Have you ever wondered how grapefruit (and larger)-size masses of up to 2,000 eggs come out of a 2- to 3-inch-long Wood Frog that weighs about a third of an ounce?  It turns out that a Wood Frog’s eggs are highly compressed into a mass the size of a golf ball when laid!  In under an hour they have absorbed enough water to have expanded to the size we usually associate with Wood Frog egg masses. (Photo: three freshly-laid (darker) egg masses amongst older egg masses)

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14 responses

  1. Alice

    That’s a lot of Tadpoles….such amazing little creatures. They look very vulnerable. Interesting info! I need to look up the difference between those, Peeper & Green Frog egg masses.

    April 13, 2020 at 8:21 am

  2. Great piece of information! It never occurred to me to wonder about that. The photo is an excellent illustration of your information. Wonderful post!

    April 13, 2020 at 8:22 am

  3. Jody Crosby

    Wow that is a fantastic shot Mary!!!

    April 13, 2020 at 8:24 am

  4. Diane

    Informative post as always!

    April 13, 2020 at 8:29 am

  5. kathiefive

    What a great photo, Mary! Worlds within worlds.

    April 13, 2020 at 8:38 am

  6. Yes! I have wondered, and this is a wonderful photo to help explain this remarkable phenomenon. Still looks like a lot to have been inside that mama!

    April 13, 2020 at 9:35 am

  7. Doreen Morse

    This was a trip back in time for me. Brought me back to childhood when we would bring these eggs home in a jar, put into an aquarium and watch the tadpoles develop. Then we would bring them back to the pond and let them go before they reached full growth.

    April 13, 2020 at 9:37 am

  8. Louise Garfield

    Wood frogs—amazing egg carrying !


    April 13, 2020 at 10:04 am

  9. Thank you for your question in the topic sentence of this post. I have never thought along those lines. You’ve motivated me to wonder more deeply.

    April 13, 2020 at 10:15 am

  10. Dan Maxon

    Sometimes when I see those masses, I think it’s more about pumping food into the web of forest life than procreating.

    April 13, 2020 at 10:45 am

  11. Sue Gerry

    amazing isn’t it! Love ya honey.


    April 13, 2020 at 11:08 am

  12. Interesting, didn’t know that!

    April 13, 2020 at 2:37 pm

  13. Avery

    Mary, is there a way to contact you for questions with a photo attached?

    April 14, 2020 at 7:30 am

    • Hi Avery,
      Yes, you can email me and attach a photo at I am getting an inordinate number of emails these days, so it could be a while before I get back to you, but I will get back to you!

      April 14, 2020 at 12:23 pm

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