The long range study of the communication systems of wild ungulates was continued during the summer (May 20 to September 4, 1971) as planned. Our special intererst was centered on the role of fear in the daily and seasonal life of the animals. Project Number 124.
"A Comparative Study of Communications in Big Game,"
Jackson Hole Research Station Annual Report: Vol. 1971
, Article 2.
Available at: http://repository.uwyo.edu/jhrs_reports/vol1971/iss1/2