* February 2 — Sonic the Hedgehog 3 ( Sega, Mega Drive / Genesis ), introduced Knuckles the Echidna.

Like the Platypus, the Echidna has a low body temperature — between — but, unlike the Platypus, which shows no evidence of torpor or hibernation, the body temperature of the Echidna may fall as low as.

* Cronus — The infamous titan sealed until Echidna released him.

Rygar is about to receive a wreath from Princess Harmonia in a ceremony for a victorious naval battle, when Titans suddenly attack led by Echidna.

His great service to the Olympic pantheon was to slay the chthonic serpent-legged monster Echidna as she slept in her cave.

Joseph Eddy Fontenrose suggests that for Nonnus Campe is a Greek refiguring of Tiamat and that " she is Echidna under another name, as Nonnos indicates, calling her Echidnaean Enyo, identifying her snaky legs with Echidna's ", and " a female counterpart of his Typhon ".

In Greek mythology, Echidna (, ekhis, ἔχις, meaning " she viper ") was half woman half snake, known as the " Mother of All Monsters " because most of the monsters in Greek myth were mothered by her.

There, then, did the gods appoint her a glorious house to dwell in: and she keeps guard in Arima beneath the earth, grim Echidna, a nymph who dies not nor grows old all her days.

Although to Hesiod, she was an immortal and ageless nymph, according to Apollodorus, Echidna used to " carry off passers-by ", until she was finally killed where she slept by Argus Panoptes, the hundred-eyed giant.

Hesiod's Theogony follows the Homeric description: he makes the Chimera the issue of Echidna: " She translation .</ ref > The author of the Bibliotheca concurs: descriptions agree that she breathed fire.

His great service to the Olympian pantheon was to slay the chthonic serpent-legged monster Echidna as she slept in her cave.

After she and Icarus capture Harmonia, Echidna has the Minotaur dispose of Rygar with a pit torn open in the ground.

Cerberus was the offspring of Echidna, a hybrid half-woman and half-serpent, and Typhon, a fire-breathing giant whom even the Greek gods feared.

According to Apollodorus, Echidna was the daughter of Tartarus and Gaia, while according to Hesiod, either Ceto and Phorcys or Chrysaor and the naiad Callirhoe were her parents.

Echidna was a drakaina, with the face and torso of a beautiful woman ( depicted as winged in archaic vase-paintings ) and the body of a serpent, sometimes having two serpent's tails.

Echidna was the mother by Typhon of many monstrous offspring, including:

However Hesiod's genealogy here is unclear, he says these two were fathered by Orthrus, but he has been read variously as saying that Echidna, the Chimaera, or even Ceto, was their mother.

Ladon, the dragon which guarded the golden apples in the Garden of the Hesperides, was also born of Echidna by Typhon, according to Apollodorus, and Hyginus, but according to Hesiod, Ladon was the offspring of Ceto and Phorcys.

In Greek mythology, Orthrus ( Orthros ) or Orthus ( Orthos ) () was a two-headed dog and a doublet (" brother ") of Cerberus, both whelped by the chthonic monsters Echidna and Typhon.

According to some sources, it was he rather than Typhon that sired, with Echidna, further chthonic monstrous creatures: the Chimera, the Sphinx, the Lernaean Hydra, and even, Hesiod says, the Nemean lion, and Cerberus.

He was known as the " Father of all monsters "; his wife Echidna was likewise the " Mother of All Monsters.

According to Hesiod, he was the son of Orthrus and Echidna.

According to Hesiod, Ladon was the son of Phorcys and Ceto, instead of Typhon and Echidna.

The Hydra was the offspring of Typhon and Echidna ( Theogony, 313 ), both of whom were noisome offspring of the earth goddess Gaia.

Usually depicted as a lion, with the head of a goat arising from its back, and a tail that ended in a snakes's head, the Chimera was one of the offspring of Typhon and Echidna and a sibling of such monsters as Cerberus and the Lernaean Hydra.

The Chao raising feature was expanded in Sonic Adventure 2 ; Chao may become " Hero Chao " or " Dark Chao " depending on whether the game's " hero " characters ( Sonic the Hedgehog, Miles " Tails " Prower, and Knuckles the Echidna ) or " dark " characters ( Shadow the Hedgehog, Doctor Ivo Robotnik, and Rouge the Bat ) are nicer to them.

In Greek mythology, Gelonus was the son of Echidna and Heracles, he had an older brother Agathyrus and a younger Scythes.

At one point in the development process, there was a possibility for 4 playable characters: Knuckles the Echidna, Tiara Boobowski, Miles " Tails " Prower, and Sonic the Hedgehog, with each character having a unique gameplay style.

The fox was one of the children of Echidna.

* Knuckles the Echidna from the Sonic the Hedgehog video game series

* Echidna Parass, fictional character from the Black Cat series

The lion is usually considered to have been the offspring of Typhon ( or Orthrus ) and Echidna ; it is also said to have fallen from the moon as the offspring of Zeus and Selene, or alternatively born of the Chimera.

The game is a sequel to Sonic the Hedgehog 2 and follows on directly from the end of the game, in which Sonic defeated his enemy, Dr. Robotnik ; crash-landing on a floating island, Sonic encounters new character Knuckles the Echidna, and must once more retrieve the Chaos Emeralds while also working to stop Dr. Robotnik from relaunching his ship, the Death Egg.

In the present day, Knuckles the Echidna is guarding the Master Emerald on the floating Angel Island when Chaos is released from the emerald by Dr. Robotnik.

It follows the protagonist team of Sonic the Hedgehog, Knuckles the Echidna, and Miles " Tails " Prower and the antagonist team of Doctor Eggman, Shadow the Hedgehog, and Rouge the Bat and their attempt to work together in order to save the world from destruction.

In zebrafish, the orthologues of the three mammalian hh genes are: shh a, shh b, ( formerly described as tiggywinkle hedgehog named for Mrs. Tiggy-Winkle, a character from Beatrix Potter's books for children ), and indian hedgehog b ( formerly described as echidna hedgehog, named for the spiny anteater, though this may have also been a playful reference to Knuckles the Echidna, another character from the Sonic the Hedgehog series of video games ).

Referred to in-game as Knuckles the Echidna in Sonic the Hedgehog 2, the game is largely identical to Sonic the Hedgehog 2, with the exception that gameplay is altered due to Knuckles having separate abilities from Sonic or Tails.

Spin-off publications from the comic include a Knuckles the Echidna series which ran for 32 issues ; Sonic X, a comic spin-off based on the cartoon of the same name, which lasted 40 issues, and Sonic Universe, a direct spin-off of the expanded universe of the original comic, which is still on-going.

* Knuckles the Echidna # 1-32 ( Published monthly from April 1997 to February 2000 )

* Sonic Firsts ( 1998 ) ( Includes the first appearances of Sonic the Hedgehog, Princess Sally Acorn, Bunnie Rabbot, Super Sonic, and Knuckles the Echidna, taking stories from issue # 0 of the original Sonic Miniseries, and issues # 3, # 4, and # 13 of the regular series.

and heroic characters from the Sonic series, including Sonic the Hedgehog, Miles " Tails " Prower, Knuckles the Echidna, Amy Rose, Rouge the Bat, E-123 Omega, Vector the Crocodile, Charmy Bee, and Espio the Chameleon.

Since Shaw first described the species, its name has undergone four revisions: from M. aculeata to Ornithorhynchus hystrix, Echidna hystrix, Echidna aculeata and finally, Tachyglossus aculeatus.