Readers’ wildlife photos: frogs in lust

Andrew Sinnott has contributed a pair of lovely frogs, along with the story:

I thought I’d appeal to your amphibian soft spot in submitting this photo for consideration for the website. It’s a pair of Smilisca cyanosticta (blue spotted tree frog I think is the common name) in amplexus [JAC: "amplexus" is the grasping of a female by a male amphibian just before spawning] that I shot in Belize in the summer of 2009.

I was there as a research assistant for the University of Manchester studying Agalychnis moreletii and Agalychnis callidryas and for all sorts of reasons it was really hit and miss if we saw more than a handful of either species, let alone any other, but this night was like a goldmine for an amateur herper! On this six foot wide, four foot high bush overhanging the pond there were maybe eighty frogs, of I think six different species. At one point a colleague held up a two foot twig that had six or seven moreletii males clambering over each other to get to the nearest female.

I snapped a ton of shots and was lucky enough to get this one with my cheap kit lens and flash gun I got for £20 on ebay. I’m particularly proud of it because it’s a shot of natural behaviour that isn’t staged in any way. I haven’t been back to Belize (or any other rainforest for that matter!) but that that trip was one of the best experiences of my life so far.

9 Comments

  1. Matthew Snook
    Posted December 22, 2011 at 12:10 pm | Permalink

    Great photo and story! Envy.

    Most frogs don’t copulate. Fertilization is exterior, call it spawning. Among Anurans only Ascaphus has copulation and internal fertilization.

    • whyevolutionistrue
      Posted December 22, 2011 at 12:23 pm | Permalink

      Indeed! Fixed, thanks!

  2. grrbear
    Posted December 22, 2011 at 12:59 pm | Permalink

    Great shot! It is human habit to anthropomorphize, but judging from their eyes, they both seem a little bored by the whole thing :)

    • Griff
      Posted December 22, 2011 at 1:30 pm | Permalink

      It IS a great shot, and congrats to the photographer. But how can you tell when a frog is bored?

      • Posted December 23, 2011 at 1:23 am | Permalink

        The mating season here in Thailand (the green season is June-October) is very loud and the amphibians look very excited to me. Now during the dry season many amphibians go underground, although I still stumble over toads (Bufo melanosticta) in the dark.

        Eric

    • Dave Ricks
      Posted December 22, 2011 at 11:08 pm | Permalink

      >dat sexface

      oh yeah

  3. Marella
    Posted December 22, 2011 at 3:35 pm | Permalink

    You have every right to be proud of that shot Andrew, it’s fabulous.

  4. JBlilie
    Posted December 23, 2011 at 7:08 am | Permalink

    Well done. What a great experience as well.

  5. Dominic
    Posted December 25, 2011 at 11:56 am | Permalink

    Thanks for sharing.


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