Echidna

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Echidna:

see TyphonTyphon
or Typhoeus
, in Greek mythology, fierce and monstrous son of Gaea. He was the father of Echidna—a monster half woman and half dragon—and of Cerberus, Hydra, the Sphinx, and the Chimera.
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.

echidna

(ĭkĭd`nə) or

spiny anteater,

animal of the order Monotremata, the egg-laying mammals. A short-legged, grayish brown animal, the echidna is covered with sharp quills and can protect itself by rolling into a tight bristly ball. It may reach 18 in. (46 cm) in length. Padded soles and stout claws make it a clumsy walker but a strong and rapid burrower. The echidna has only a rudimentary tail and lacks both external ears and teeth. With its sensitive muzzle and long sticky tongue it probes for ants and termites. It is nocturnal and hibernates in winter. There are two genera and several species of echidna; all are native to the sandy and rocky areas of New Guinea, E Australia, and Tasmania. Females produce one or two eggs, which are deposited in a rudimentary marsupial pouch. The newly hatched young remain in the pouch, feeding on a milky fluid, until their spines begin to grow. Echidnas are not closely related to true anteaters, which are higher mammals. They are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Mammalia, order Monotremata.

Echidna

 

in ancient Greek mythology, a monstrous creature that was half-woman and half-viper. Allegorically, an echidna is an evil, perfidious person.

echidna

[ə′kid·nə]
(vertebrate zoology)
A spiny anteater; any member of the family Tachyglossidae.

Echidna

half nymph, half snake; never grew old. [Gk. Myth.: Kravitz, 85]

echidna

any of the spine-covered monotreme mammals of the genera Tachyglossus of Australia and Zaglossus of New Guinea: family Tachyglossidae. They have a long snout and claws for hunting ants and termites

Echidna

Constraint logic programming embedded in an object-oriented language. The syntax is an extension of Edinburgh Prolog.

["Hierarchical Arc Consistency Applied to Numeric Processing in Constraint Logic Programming", G. Sidebottom et al, TR-91-06, CSS-IS, Simon Fraser U, and Comp Intell 8(4) (1992)].

ftp://cs.sfu.edu/pub/ecl/papers.

E-mail: <expert@cs.sfu.edu>.