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Philippine Tarsier Uses Ultrasound To Communicate – Study

By on Feb 8, 2012 in Animals, Asia, Science, World Comments
Philippine Tarsier
Philippine Tarsier
Image Credit: ItsNature.org

A team of scientists from the United States and the Philippines led by Marissa Ramsier of Humboldt State University in California found out that the Philippine tarsier communicates in a range of ultrasound not heard by its predator and prey, science news sites reported on Wednesday, February 8, 2012.

According to reports, the Philippine tarsier can hear and emit sounds at a frequency in the ultrasound range, which is above 20 kilohertz (kHz).

Reports said that the primate can hear frequencies above 90 kHz and it can emit sounds in a range around 70 kHz. By comparison, humans generally will not be able to hear anything above 20 kHz. With this ability, it effectively gains a private channel for sending warnings with each other.

“Ultrasonic calls can be advantageous to both the signaller and receiver as they are potentially difficult for predators to detect and localise,” the researchers were quoted as saying.

“The minimum frequency of the call — 67 kHz — is the highest value of any terrestrial mammal, excluding bats and some rodents,” the researchers reportedly said in the study published in the British Royal Society‘s Biology Letters.



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