Are the grey whales becoming extinct?
From: TEXAS Episcopal High School kfoster@ehshouston.org Q. It is common knowledge that whales communicate by a system of high pitched noises (a.k.a. squeaks, squeals). How does the whale interpret each message? Can they differentiate between different messages based on pitch, volume, etc.? Does this apply to migration habits? A. We’re not sure how whales communicate or what they are communicating, however, we do know that different species make “vocalizations” of different types (pitch, volume, length, etc.). Humpback “songs” have been studied in the breeding grounds and appear to be a part of the mating ritual. Scientists have been able to record sounds from a variety of species, including blue whales, finbacks, humpbacks, minkes, sperm whales and orcas, among many. Some new research sponsored by Cornell and the International Fund for Animal Welfare will be using pop-up sonar arrays in the Great South Channel to study vocalizations in the feeding grounds (and perhaps information abou
