A prime example of bistability in biological systems is that of Sonic hedgehog ( Shh ), a secreted signaling molecule, which plays a critical role in development.

Other terrestrial mammals include subspecies of the Cretan marten, the Cretan weasel, the Cretan badger, the long-eared hedgehog, the edible dormouse, and the Cretan shrew, a unique endemic species of mammal in Greece, that is unfortunately threatened with extinction.

How It Works, compared chauvinistic husbands to the hedgehog from a well-known Russian fable, The Hedgehog and the Fox ; they have one way of thinking, and it is so engrained that they cannot change it.

The word " Echinoderm " is derived from the Greek ἐχινοδέρματα ( echinodermata ), plural of ἐχινόδερμα ( echinoderma ), " spiny skin " from ἐχινός ( echinos ), " sea-urchin ", originally " hedgehog ," and δέρμα ( derma ), " skin ".

The specific purpose of this ritual is unknown, but some experts believe anointing camouflages the hedgehog with the new scent of the area and provides a possible poison or source of infection to predators poked by their spines.

Similar to opossums, mice and moles, hedgehogs have some natural immunity against snake venom due to the protein erinacin in the animal's muscular system ( although it is only available in small percentage and a rattlesnake bite, for example, will kill the hedgehog anyway ).

As with many animals, it is not unusual for an adult male hedgehog to kill newborn males.

It is smaller than the European hedgehog, and thus is sometimes called the African pygmy hedgehog.

It is illegal to own a hedgehog as a pet in some US states and some Canadian municipalities, and breeding licenses are required.

In the Middle East and especially among Bedouins, hedgehog meat is considered medicinal, and thought to cure rheumatism and arthritis.

On the other hand, there is no monophyletic relation between the mole and the hedgehog, both of which were previously placed in the now abandoned order Insectivora.

It is based upon the observation that REM sleep in several mammals ( the rat, the hedgehog, the rabbit, and the rhesus monkey ) is followed by a brief awakening.

Sonic hedgehog ( Shh ) is a key player in patterning the ventral axis, while Bone morphogenic proteins ( Bmp ) and Wnt family members play an important role in patterning the dorsal axis.

The city's German name, Iglau, is derived from the German word for hedgehog, Igel, hence the hedgehog on the coat of arms.

It is possibly related to the Romanian viezure (" badger "), a word of uncertain etymology, believed to be inherited from Dacian / Thracian and related to the Albanian vjedhullë (" badger ", " thief ") and vjeth (" to steal "), and the Slavic jazvrŭ (" hedgehog "; cf.

This is one of the main reasons that they always fail at catching the speedy blue hedgehog.

An instanton is a configuration where, for example, the arrows point away from a central point ( i. e., a " hedgehog " state ).

The lesser hedgehog tenrec ( Echinops telfairi ) is one of 16 mammalian species that will have its genome sequenced as part of the Mammalian Genome Project.

This " weapon ," a black hedgehog named Shadow who claims that he is the " Ultimate Life Form ," offers to help Eggman take over the world, telling the scientist to rendezvous with him at the abandoned Space Colony ARK with more Chaos Emeralds.

During the 1980s, " hedgehog-flavour " crisps were introduced in Britain, although the product did not contain any hedgehog.

More generally any hedgehog space is an example of a real tree.

A Czech hedgehog made to specifications could be constructed from any material capable of withstanding at least, while being at most high.

Strings from frayed edges on blankets have been known to wrap around hedgehog's legs, causing amputation, so any frayable fabric that is to be near the hedgehog must be checked thoroughly to avoid problems.

Due to the large amount of breeding stock available in captive collections, the four-toed hedgehog is rarely imported from the wild any longer.

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 ).

However, their coats are endowed with unusually stiff guard hairs that function similarly to the spines of a hedgehog ; this trait is the source of the common name, spiny mouse.

There are some small mammals including rabbits, rats, mice, pine marten and the North African sub-species of hedgehog.

Land mammals include badger, rabbit, otter, hedgehog, red fox, mink, bats, squirrel ( red and grey squirrel ).

Investigations aimed at finding a hedgehog equivalent in mammals revealed three homologous genes.

Alongside squirrels more common mammals can be found, such as the badger, fox, deer, rabbit, hare, weasel, stoat, hedgehog and varieties of rats, mice, shrews and voles.

The mammals that we have evidence for include herbivores such as beaver, red deer, roe deer, elk ( known as moose in North America ), aurochs, wild boar, hare and carnivores such as wolf, lynx, bear, fox, pine marten, badger and hedgehog.

There are over 14 species of mammals including blackbuck, chital or spotted deer, jackal, small Indian civet, common palm civet, bonnet macaque, hyena, jackal, pangolin, hedgehog, common mongoose and three-striped palm squirrel.

The gymnure, also called a hairy hedgehog or moonrat, is a type of mammal belonging to the subfamily Galericinae, in the family Erinaceidae and the order Erinaceomorpha.

According to the Guinness Book of World Records, this species is probably the largest species of hedgehog and is possibly the heaviest member of the Erinaceomorpha order, although the similarly-weighted Moonrat can attain a considerably greater length.

In their school room Beatrix and Bertram kept a variety of small pets, mice, rabbits, a hedgehog, some bats along with collections of butterflies and other insects which they drew and studied.

In the Ardennes, a combination of hedgehog defense at Bastogne, St Vith and other locations, and a counterattack by Patton's 3rd U. S. Army were employed.

* Lewis Carroll featured a surrealistic version of the game in the popular children's novel Alice's Adventures in Wonderland ; a hedgehog was used as the ball, a flamingo the mallet, and playing cards as the hoops.

Lambert ) ( a nervous, pessimistic and melancholic hedgehog ) and Solan ( En.

He also enjoyed fishing and shooting rabbits, and conducting experiments as in cooking a hedgehog or shooting down a jackdaw from the Eton roof to dissect it.

The result was The Pinchcliffe Grand Prix, which stars Theodore Rimspoke ( No. Reodor Felgen ) and his two assistants, Sonny Duckworth ( No. Solan Gundersen ), a cheerful and optimistic bird, and Lambert ( No. Ludvig ), a nervous, pessimistic and melancholic hedgehog.

" He also had predictable habits, which were noted by the Viennese press, such as his daily visit to his favourite " Red Hedgehog " tavern in Vienna, and his habit of walking with his hands firmly behind his back ( once again, like Beethoven ), which led to a caricature of him in this pose walking alongside a red hedgehog.

Nematics also exhibit so-called " hedgehog " topological defects.

Some have pores underneath ( and are usually called boletes ), others have spines, such as the hedgehog mushroom and other tooth fungi, and so on.

* A hedgehog named Boo.

Gradually, improving Allied technologies such as the Leigh light, hedgehog, squid, and homing torpedoes proved victorious.

Wallace arranged his spearmen in four schiltrons — circular, hedgehog formations surrounded by a defensive wall of wooden stakes.

The name hedgehog came into use around the year 1450, derived from the Middle English heyghoge, from heyg, hegge (" hedge "), because it frequents hedgerows, and hoge, hogge (" hog "), from its piglike snout.

Their spines are not poisonous or barbed and, unlike the quills of a porcupine, cannot easily be removed from the hedgehog.

However, spines normally come out when a hedgehog sheds baby spines and replaces them with adult spines.

When under extreme stress or during sickness, a hedgehog can also lose spines.