Yes, my google-fu is that weak.
My dog starts barking at dogs coming up the street long before I know they are coming.
I figure their toe nails are making ultrasounds, too high pitch for me to hear.
Related data is that a guy played a recording of a bull elk 'bugleing', put it on an oscilloscope, and could see the ultrasonic segment. He then incorporated ultrasounds into his elk calls. $$$$ ensued. So, how about dog toenails?
My dog starts barking at dogs coming up the street long before I know they are coming.
I figure their toe nails are making ultrasounds, too high pitch for me to hear.
Related data is that a guy played a recording of a bull elk 'bugleing', put it on an oscilloscope, and could see the ultrasonic segment. He then incorporated ultrasounds into his elk calls. $$$$ ensued. So, how about dog toenails?
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