By Kathleen M. Dudzinski, Toni Frohoff
"Dolphins have involved people for millennia, giving upward push to an abundance of reports and myths approximately them, but the particular information in their lives within the sea have remained elusive. during this mesmerizing ebook, Kathleen M. Dudzinski and Toni Frohoff take us into the dolphins' aquatic international to witness firsthand how they reside their lives, converse, and have interaction with each other and with different species, together with people.
Kathleen M. Dudzinski and Toni Frohoff are scientists who've jointly committed greater than forty years to learning dolphins underneath the ocean's floor, often via a close-up underwater lens. Drawing all alone studies and on up to the moment learn, the authors exhibit that dolphins are decidedly not only participants of a bunch yet distinctive contributors, capable of converse with each other and with people. Dudzinski and Frohoff introduce a brand new method of taking a look at, and hearing, the vocabulary of dolphins within the sea, they usually even supply an introductory "dolphin dictionary," directory complicated social signs that dolphins use to percentage info between themselves and with humans. Unveiling an intimate and scientifically actual portrait of dolphins, this booklet will entice all people who has sought after a more in-depth glimpse into the hearts and minds of those outstanding creatures."
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Additional info for Dolphin Mysteries: Unlocking the Secrets of Communication
Earth’s magnetic ﬁeld is shaped as if there were a huge bar magnet in the Earth’s core. Instead of a magnet, Earth’s rotation is thought to cause currents in the liquid outer core. Those currents create a magnetic ﬁeld in a similar way in which power plants generate electricity when steam or falling water rotates an electrical conductor in a magnetic ﬁeld. Stra Cape Mendocino p FIGURE 2-5. The magnetic polarity, or orientation, across the Juan de Fuca Ridge in the Paciﬁc Ocean shows a symmetrical pattern, as shown in this regional survey (a similar nature of stripes exists along all spreading centers).
Stretched continental crust a p FIGURE 2-21. a. The East African Rift Valley spreads the continent apart at rates 100 times slower than typical oceanic rift zones. This rift forms one arm of a triple junction, from which the Red Sea and the Gulf of Aden form somewhat more rapidly spreading rifts. b. The northern end of the Red Sea spreading zone connects with the Dead Sea transform fault. larger at the same rate as new oceanic crust forms. That is clearly not the case. The idea of two plates colliding is truly horrifying at ﬁrst thought—the irresistible force ﬁnally meets the immovable object.
P Developed countries lose large amounts of money in a major disaster; poor countries lose larger numbers of lives. Predicting Catastrophe p Events are often neither cyclic nor completely random. p Although the precise date and time for a disaster cannot be predicted, understanding the natural processes behind disasters allows scientists to forecast the probability of a disaster striking a particular area. p There are numerous small events, fewer larger events, and only rarely a giant event. We are familiar with the common small events but tend not to expect the giant events that can create major catastrophes, because they come along so infrequently.