Sound of Rats Calling for Cocaine

To hear the rats calling, turn up sound in System Preferences or on connected speakers and click on the following video:

1.0 sec of 50-kHz vocalizations slowed to 19 secs
(You may need to set your volume as high as possible to hear the vocalizations.)

Facebook link iconMake a Gift
Texas Pharmacy: The University of Texas at Austin College of Pharmacy