The beaver is a large, primarily nocturnal, semiaquatic rodent. They are the second-largest rodent in the world. They have a number of adaptations that make them adept swimmers including webbed feet and a broad, flat tail that is covered with scales. They also have an extra set of eyelids that are transparent and close over their eyes which enable them to see underwater. Beavers also seem to use their tails to regulate their body temperature. The tail is not well insulated, so when a beaver is too hot it can offload excess body heat through its tail.
Beavers have very large teeth in proportion to their skull. The incisors have a structure that means they are self-sharpening. Their tooth grew at an angle towards the beaver’s left eye. The outer surface is coated in enamel and the inner surface is coated in dentine. This enamel is orange to chestnut brown in color. The softer dentine erodes faster than the hard enamel, maintaining a sharp cutting edge as the beaver gnaws. Beaver’s incisors grow at the fairly nifty speed of almost 0.5 cm a month. The top and bottom teeth keep each other sharp. This is in large part down to its powerful jaw muscles, which give it a far larger bite force for its body size than most other rodents. Beavers’ teeth grow continuously throughout their lives. As beavers chew through tree trunks and bark, their teeth get worn down, so the continuous growth of their teeth ensures they always have a sharp set of teeth available to them. To further assist them in their chewing endeavors, beavers have strong jaw muscles and significant biting strength. Beavers can unleash nearly 180 pounds of biting force per square inch, compared to the human’s 88 pounds.
Beavers are well known for the thunderous warning slaps or splashes of their tails that alert other family members to the presence of intruders. A beaver colony marks an area by building mounds of mud near the lodge and dam near trails. On these mounds, which usually vary from 2-7 in number and are 5.0-7.5 cm (in height and 30 cm in diameter, colony members place secretions from the castor sacs and anal glands.
For the second year in a row, a beaver is to blame for phone and internet outages in northern B.C.
There were no indications that the beaver had been harmed, B.C. Hydro said
CBC News · Posted: Jun 09, 2022 8:45 PM PT
For the second time in just over a year, a beaver has been blamed for causing service outages in northern B.C.
B.C. Hydro says one of the large rodents chewed through a tree that fell and damaged several telephone poles and fibre cables near Houston, B.C., on Tuesday, causing intermittent internet, TV, home phone and wireless service outages in several communities across the province’s northwest.
Telus reported that services were affected in Burns Lake, Topley, Terrace, Prince George, Kitimat, Smithers, Granisle and Hazelton. Outages were also reported in Prince Rupert.
The company said it worked with B.C. Hydro to repair the damage and restore service as soon as possible.
Hydro spokesperson Simi Heer said Thursday that after repairs were made, workers had a gnawing suspicion that a beaver had something to do with the felled tree, which went down close to Highway 16 between Houston and Topley, 14 kilometers east of Houston.
Beavers causing problems for Wake County drivers
Robert Richardson │February 22, 2019
CARY, N.C. (WNCN) – Some critters are causing problems for drivers on Green Level Church Road.
Mayor Harold Weinbrecht announced in his weekly Town of Cary blog that beavers are to blame for the bump in the road. The rodents built a dam in storm pipes near the intersection of Green Level Church Road and O’Kelly Chapel Road, and the rerouted water caused the pavement to settle.
There is a significant dip in the road on the far right northbound lane. It filled with rain water this week, and vehicles that hit the dip caused big splashes Friday.
North Carolina Wildlife Resources Commission biologist Falyn Owens said it is illegal to live trap and relocate beavers in North Carolina.
“Beavers are territorial and do not tolerate new beavers that have been relocated into their territory, leading to aggressive encounters,” Owens said by email.
Beaver knocks out power to thousands after chewing down pole near Prince Albert
Oct 30, 2017
The city of Prince Albert, Sask., and a large chunk of northern Saskatchewan lost power for about an hour after a beaver partially chewed through a power pole southeast of the city on Sunday.
SaskPower is calling this a very Canadian problem.
“This was one of our larger wooden power poles and there was ample evidence of beaver damage at the base of it, so beavers had been chewing away at it,” said spokesperson Jonathan Tremblay.
Animals account for roughly one-third of the power outages experienced by SaskPower customers.
“Usually, it’s birds flying into substations, or squirrels chewing at things they shouldn’t,” he said.
In May, the Crown utility had to repair another line after beavers gnawed through a pole in the southwest.
Beavers are more active this time of year, as young beaver kits are pushed out of lodges.
While SaskPower was able to reroute power around the area, people near the village of Weldon were without power for nearly five hours.
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