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A frog in the throat, literally

Date:
June 8, 2015
Source:
Christian-Albrechts-Universitaet zu Kiel
Summary:
A researcher who generates three-dimensional computer models of animals using a micro-CT scanner found that in analyzing a frog specimen, another animal was present inside the frog -- another frog.
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A frog in a frog.
Credit: Dr. Thomas Kleinteich, Kiel University

"I work as a research associate on a project into the sticky characteristics of amphibian tongues," says Dr Thomas Kleinteich, from the Functional Morphology and Biomechanics working group at the Zoological Institute at Kiel University. He generates three-dimensional computer models of animals using a micro-CT scanner, which works in a similar way to a medical CT scanner but is designed for investigating small objects. Kleinteich: "To do so, I use museum specimens conserved in alcohol. In this case, it is a South-American horned frog Ceratophrys from the collection at the Zoological Museum in Hamburg."

When analyzing the scan, Kleinteich found that another animal was present inside the frog: "We have known for a while that horned frogs are able to eat very large prey. Last year I was able to show experimentally, that horned frogs can produce extremely strong adhesive strength with their tongues, which they also need in order to catch larger prey. With the micro-CT I am able to show, for the first time, how such a large catch can even fit inside a horned frog." The image of the frog with a frog in its throat won a competition in May from the CT-manufacturing company "Bruker microCT."


Story Source:

Materials provided by Christian-Albrechts-Universitaet zu Kiel. Note: Content may be edited for style and length.


Journal Reference:

  1. Kleinteich, Thomas. To have a frog in the throat: micro-CT imaging of anuran prey in Ceratophrys ornata (Anura: Ceratophryidae). SALAMANDRA - German Journal of Herpetology, Volume 51, No. 2 June 2015

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Christian-Albrechts-Universitaet zu Kiel. "A frog in the throat, literally." ScienceDaily. ScienceDaily, 8 June 2015. <www.sciencedaily.com/releases/2015/06/150608082923.htm>.
Christian-Albrechts-Universitaet zu Kiel. (2015, June 8). A frog in the throat, literally. ScienceDaily. Retrieved May 8, 2017 from www.sciencedaily.com/releases/2015/06/150608082923.htm
Christian-Albrechts-Universitaet zu Kiel. "A frog in the throat, literally." ScienceDaily. www.sciencedaily.com/releases/2015/06/150608082923.htm (accessed May 8, 2017).