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Summary on Shrews

 
     
 

 

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Shrews And Shrew Types

There is an amazing creature in Africa, which is only a few inches long but very hardy. So hardy that it can take a huge human being, without breaking any of its parts or getting itself injured. It is rightfully called the hero shrew.

What kinds of creatures are shrews?
Primarily, shrews are any of the 290 species of mammals of the family Soricidae. True shrews are small mouse-like creatures found throughout the Northern Hemisphere and in the mountains of north western South America. They may be found on some oceanic islands. 

Shrews have tiny eyes and small, external ears. Their skull is narrow and the snout overhangs the lower lip. They have around thirty teeth, all of which are permanent from birth.  

   

As mentioned earlier, shrews are very small. Among them, the Savi's pygmy shrew found in the Mediterranean region is believed to be the world's smallest mammal. Its head and body length is merely one and a half inches. It weighs around two grams! In comparison, the American pygmy shrew (Microsorex hoyi) and the European pygmy shrew (Sorex minuta) are slightly bigger. Shrews are so small and sensitive that a sudden loud noise or an unexpected touch or shock is enough to kill them.    

Shrews may chiefly be found on the ground, although some varieties are burrowers and some others are semi-aquatic or arboreal (living on trees). They are very active creatures. The secret of their energy is the fact that they ensure they get periods of rest. 

Shrew food
The eating habits of shrews are interesting. Most of them carry a kind of poisonous saliva to catch their prey. They subsist on invertebrates. Some of them delight on plant or carrion.  

Picture of a shrew
The shrew

 

The shrew's metabolic rate is very high. It has a tendency to eat more than its own body weight. It cannot remain without eating for more than a few hours. If it cannot locate its regular food, it turns cannibal. When it comes feeding on shrews, there are few mammals that will touch it, thanks to a smell that emits from its glands. Birds of prey and snakes will eat shrews.

The female shrew
The life span of a female shrew is about eighteen months. It produces two to ten young ones in its lifetime, in one or more litters. 

Some varieties:
Tree shrew
Among the varieties of shrews, some interesting ones are the hero shrew that we've mentioned earlier, the tree shrew and the elephant shrew. Tree shrews are any of the small, squirrel-like mammals that constitute the family Tupaiidae. Interestingly, tree shrews are either terrestrial or arboreal.

Tree shrews are grey, brown or reddish brown in color. Sporting long tails, pointed noses and sharp curved claws, the creatures vary in length from twenty centimeters to thirty-five or forty centimeters. 

There are about fifteen species of tree shrews. The staple food for tree shrews includes insects, fruit and some small animals. They make their homes in tree hollows or holes in the ground.

Elephant shrew
Elephant shrews are named for their elongated, flexible snouts. They are swift and active mammals that feed mainly on insects. They have long hind legs, large ears and eyes, and long, thin tails, which lend them an appearance that is similar to a kangaroo rat. Depending upon the variety, the body length of an elephant shrew varies from seven inches to twenty inches. The chequered-backed elephant shrew is the largest species, with a total length of seventeen to twenty three inches.

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