1. House Shrew (Suncus murinus), inhibiting in the tropical Asia is the largest species of the shrew with 15 cm length and 100 gm weight.
2. Shrew is covered with a soft, short and thick fur that is brown or gray in color.
3. The shrew is a highly energetic mammal with such a fast metabolic rate that it should be eating day and night to keep alive. Shrew can actually eat 2 or 3 times its own weight in food.
4. Among the 376 species of shrew, North America has more than 40 species including the most common short tailed shrew.
5. A shrew is a solitary mammal that is only seen together during the mating season. It is highly territorial and cannot tolerate either of the sex with them and would always drive off its rivals.
6. Though the shrew is active in both day and night, it is mainly a nocturnal animal.
7. The shrew has a high brain to body mass ratio as it holds 10% of its mass in its brain.
8. Some of the species of shrew is venomous and has toxic saliva that is painful for humans. However, it is not harmful for the humans.
9. A female shrew can have up to 10 litters in a year. The shrew living in temperate zone stop breeding during the winter season, while those in the tropics breeds throughout the year.
10. A shrew can easily be alarmed with a sudden noise like lightening which can even lead to its death.
