• Townsend's big-eared bat attacking a white-lined sphinx moth
    Townsend's big-eared bat attacking a white-lined sphinx moth
  • jammer moth in flight
    jammer moth in flight
  • a moth jamming a big-eared bat
    a moth jamming a big-eared bat
  • a "jammer" moth at rest
    a "jammer" moth at rest
  • Townsend's big-eared bat
    Townsend's big-eared bat
  • on the hunt
    on the hunt
Townsend's big-eared bat attacking a white-lined sphinx moth
Townsend's big-eared bat attacking a white-lined sphinx moth

Clip from the National Geographic TV mini-series Untamed Americas.


More videos

Welcome to the research and outreach website of Aaron Corcoran (About Me). This site is dedicated to bats and moths, especially moths that jam bat sonar.

Why care about these animals? Because they are fascinating, coevolved creatures using sound in some of the most sophisticated ways known to occur in nature.

You can learn about sonar-jamming at the Research page and you can download many of my publications.

I've also posted several images and videos, including a clip that I helped film for the recent National Geographic series, Untamed Americas. I am happy to provide multimedia for educators, journalists, etc..., but please request permission before using materials from this site.

You can sign up for occasional updates by entering your email at the bottom of this page.

Latest news

Sep. 29, 2014. Great new video on bats from It's Okay to Be Smart (including moth-jamming).

July 4th, 2014. New article in Journal of Comparative Physiology A, "Convergent evolution of anti-bat sounds"


May 5-9th, 2014. Presented new jamming research at the Acoustical Society of America Spring Meeting, Providence, RI


Oct. 17, 2013
Cover article for BATS magazine! PDF article on pg. 13.
Sep. 20, 2013 -Research highlight at smithsonian.com and Smithsonian magazine October issue.

Aug. 19, 2013 - New blog post on the 16th International Bat Research Conference

Jul. 21, 2013 - The recently released textbook Sensory Ecology, Behaviour & Evolution highlighted sonar-jamming (pp. 155-156).

May 28, 2013 - Wikipedia highlighted an article I wrote on their homepage

May 6, 2013 - Paper published in PLOS ONE -- "Optimal Predator Risk Assessment by the Sonar-Jamming Arctiine Moth Bertholdia trigona"  and highlighted in a couple research blogs.

Apr. 1, 2013 - Received a grant from the National Science Foundation to continue studying sonar jamming for the next three years!

Mar. 6-9, 2013 - Presented a poster at the Janelia Farms Conference on Predator-Prey Interactions.

Oct. 22, 2012 - New publication just came out in the Journal of Experimental Biology on sonar jamming. Nice write-up at inside JEB.