Scientists have found signs of ultrasonic communication
in a frog species that lives in China.
has been reported in other rodent species, though not as threat warnings, says David Wilson of the University of Manitoba.
Episode 801 is entitled "Expedition Panama: Science at the Smithsonian Tropical Research Institute" and the teaching guide contains information and activities on the ultrasonic communication
of bats, communication among Panama's stingless bees, problems with the watershed of the Panama Canal, the role of leafcutter ants in the rainforest, and the impact Panama has had on the earth's climate and animals.
Experts will use special bat detectors to listen to the creatures' ultrasonic communications