Skip to main content
  1. News
  2. Science & Space

Smallest frog in the world

See also

Two new species of frog are not only the smallest frogs in the world but also the smallest known vertebrate according to a report published in the open access journal PLoS One on January 11.2012.

More Photos

Paedophryne amauensis is between 7.0 to 8.0 millimeters. That is a little more than 0.03 inches.

Paedophryne amauensis is native to Papua New Guinea and named after the Amau Village where it was first discovered.

Dr. Christopher Austin of Louisiana State University. Led a team of researchers who found this tinniest of vertebrates.

"The previous smallest vertebrate was a fish, called Paedocypris progenetica, with an adult size of 7.9 to 10.3 millimeters."

The importance of the discovery is the evaluation of the physics involved with small body size. Heart rates, breathing, blood pressure, and all body functions are a function of size and the maintenance of pressures that are at minimum equal to atmospheric pressure so the animal (amphibian in this case) can produce enough pressure to inhale. Usually small size indicates extremely high heart rates but this normality may be mitigated by the nature of amphibians.

Paper

Ecological Guild Evolution and the Discovery of the World’s Smallest Vertebrate

Authors

Eric N. Rittmeyer 1, Allen Allison 2, Michael C. Grundler 3, Derrick K. Thompson 3, Christopher C. Austin 1*

1 Department of Biological Sciences and Museum of Natural Science, Louisiana State University, Baton Rouge, Louisiana, United States of America, 2 Bishop Museum, Honolulu, Hawaii, United States of America, 3 Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, United States of America

Citation: Rittmeyer EN, Allison A, Gru¨ ndler MC, Thompson DK, Austin CC (2012) Ecological Guild Evolution and the Discovery of the World's Smallest Vertebrate. PLoS ONE 7(1): e29797. doi:10.1371/journal.pone.0029797

Comments

Advertisement

News

  • Obama's Asia trip
    President Obama arrives in Asia, though he's not necessarily getting a warm welcome
    Video
    Watch Video
  • Ferry survivors deal with guilt
    The few heroes of the Korean ferry disaster deal with unimaginable survivor's guilt
    World News
  • Biden in Ukraine
    Vice President Biden urges Moscow to avoid further unrest in Ukraine
    Politics
  • Pujols hits 500th home run
    Albert Pujols becomes the latest player to hit 500 home runs in his career
    Camera
    Sports
  • North Korean nuclear test?
    South Korea detects another possible nuclear test from North Korea
    Headlines
  • NYPD's Twitter campaign backfires
    NYPD's campaign designed to amicably engage New Yorkers and cops backfires horribly
    Video
    Watch Video

User login

Log in
Sign in with your email and password. Or reset your password.
Write for us
Interested in becoming an Examiner and sharing your experience and passion? We're always looking for quality writers. Find out more about Examiner.com and apply today!