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Pigeons seem to have difficulty in dealing with problems involving classes of classes. Thus they do not do very well with the isolation of a relationship among variables, as against a representation of a set of exemplars. Pigeons can remember large numbers of individual images for a long time, e.g. hundreds of images for periods of several years.
The museum's scope covers various pigeon species as well as their history, with emphasis on domestic and homing pigeons. [9] [10] There are three main sections: one on pigeon racing, another on the use of homing pigeons during World War I and World War II, and the last on the different species of fancy pigeons that are bred for appearances. [4]
The pigeon carried a microSD card and competed against a Telkom ADSL line. [9] Winston beat the data transfer over Telkom's ADSL line, with a total time of two hours, six minutes and 57 seconds from uploading data on the microSD card to completion of download from the card. At the time of Winston's victory, the ADSL transfer was just under 4% ...
Typically, the number of unique objects in a data set n is larger than the number of available unique hash codes m, and the pigeonhole principle holds in this case that hashing those objects is no guarantee of uniqueness, since if you hashed all objects in the data set n, some objects must necessarily share the same hash code. [citation needed]
A 1972 parody, Marvin Stanley Pigeon, was published by Thomas Meehan in The New Yorker: "Marvin Stanley Pigeon was no ordinary pigeon. While other pigeons spent their time grubbing for food, Marvin Stanley Pigeon worked away on his book on the window ledge outside the Manuscript Room of the Public Library in Bryant Park .
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The domestic pigeon (Columba livia domestica or Columba livia forma domestica) [2] is a pigeon subspecies that was derived from the rock dove or rock pigeon. The rock pigeon is the world's oldest domesticated bird. Mesopotamian cuneiform tablets mention the domestication of pigeons more than 5,000 years ago, as do Egyptian hieroglyphics.
Columbimorphae is a clade/superorder discovered by genome analysis that includes birds of the orders Columbiformes (pigeons and doves), Pterocliformes (sandgrouse), and Mesitornithiformes (mesites).