Beaver's lodge and dam
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Body- parts(½Åü±¸Á¶)
The beaver is a large, web-footed, semi-aquatic rodent with brown fur and a wide, flat, dark tail.
The tail acts as a rudder while swimming,
as a prop for standing upright,
as a lever when dragging tree logs,
and as a noise maker for producing a warning signal when it is slapped on the water.
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The fingers have long claws, and the legs have webbed feet and claws.
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The beaver has a large, wide, head. It has sharp, renewable, self-sharpening, enameled teeth that can cut through wood and fell a tree. -->¸Ó¸®´Â Å©°í, ³¯Ä«·Ó°í Å« ÀÌ´Â ³ª¹«¸¦ °¦¾Æ ³Ñ¾î ¶ß¸±¶§ »ç¿ëÇÏ°í ´Ù½Ã ÀÚ¶õ´ä´Ï´Ù.
The adult beaver weighs about 20 kg (44 pounds), but can be as large as 35 kg (77 pounds). It is about 30 cm (12 in) tall, and its tail is about 25 cm (about 10 in) long. The beaver is the largest rodent in North America. Its life span in the wild is about 20 years.
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HABITAT(¼½ÄÁö)
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Beavers live in North America, Europe, and northern
Asia, and are famous for their building skills.
Beavers live by rivers, streams, ponds, and lakes.
They are one of the few animals that alter their environment in a large-scale way in order to provide themselves living space and protection.
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Beavers build dams that change the course of streams and create ponds.
They build dams and lodges using sticks, bark (from deciduous trees), mud, and logs (that they fell themselves).
The presence of pointed tree stumps is a good indication that there are beavers living nearby.
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To create a habitat, beavers build a dam in a stream, flooding an area of the woods and creating a pond in which the beaver can build a lodge.
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This beaver lodge or den is located away from shore and has an underwater entrance.
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This makes it difficult for most predators to enter the lodge.
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In winter, the water around the lodge usually freezes, protecting the beaver almost completely.
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Each beaver pond is inhabited by one beaver family: two adults and usually 2-4 kits (very young beavers) .
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When the food supply around the beaver's home is exhausted, they move to another site and start again.
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REPRODUCTION (¹ø½Ä)
Beaver mating occurs in January or February.
The kits are born in early spring, from April through June.
When young beavers reach their second summer, they take on adult duties, building and maintaining the lodge and the dams.
They reach adulthood during their second winter and move away to find a mate and build a lodge of their own.
FOOD(ºñ¹ö°¡ ¸Ô´Â À½½Äµé)
The beaver eats aquatic plants(¼öÁ߽Ĺ°) (including pond weeds, water-lilies, and cattails)
and the cambium(Çü¼ºÃþ,½Ä¹° Áٱ⳪ »Ñ¸®¿¡ ÀÖ´Â Á¶Á÷) (the soft tissue in which new wood and bark grow) of hardwood trees, including birch(¹Ú´Þ³ª¹«), aspen(¹Ì·ç³ª¹«), willow, cottonwood, and alder.
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PREDATORS(ºñ¹ö¸¦ Æ÷½ÄÇÏ´Â µ¿¹°µé)
Some of the animals that prey upon beavers include foxes, coyotes, wolves, lynx, otters, weasels, hawks, eagles and owls.
¢ÄRodent(¼³Ä¡·ù)¢Å
: the squrriel, the rat, the hamster, the mouse, the chipmunk, the beaver....µî°ú °°ÀÌ Æ÷À¯·ùÀÇ ÇÑ Á¾·ù·Î ¾Õ´Ï°¡ ¹ß´ÞÇÏ¿© °¦¾Æ°¡¸ç »ì°í °è¼Ó Àڶ󳪴 Ư¡ÀÌ ÀÖ½À´Ï´Ù..
Rodents are relatively small, prolific mammals.
All rodents have a pair of front teeth that continue to grow throughout their lives; they must gnaw on food (or other objects) to grind these teeth down.
Most rodents are herbivores (plant-eaters). Some rodents, like the house mouse, are omnivores (eating plants and animals). A few rodents, like the Australian water rat, are carnivores (meat-eaters)