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Display Social displays are one of the most interesting aspects of behaviour
waterfowl behaviour, and many of the signal ... In threat, the behaviour often
tends to increase the apparent body size, as when swans raise their wings and
ruffle the ...
Although much waterfowl behaviour can thus be said to be innate, other activities
are learned during the life of the individual. One special type of learning, which is
called imprinting, has been much studied in this group. The newly hatched ...
Another common behaviour problem in cats is their natural desire to rake objects
such as drapes and furniture with their claws. Surgical removal of the front claws
to prevent property damage is normally repugnant to cat lovers. Cats can be ...
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The New Encyclopaedia Britannica (Encyclopaedia)User Review - Not Available - Book Verdict
For virtually all its 238 years,Britannica has ruled the shelves as a peerless general encyclopedia. Reviewers have consistently given it high marks for most of the 12 criteria identified inKister's ... Read full review