Both Otters and Beavers share similar habitats and can often look similar at the first glance, which is why most people wrongly identify one for the other. Female Otters can give birth to up to 6 pups at a time, but a single pup is most commonly born to them. In terms of body weight as well, Otters are much lighter than the Beavers. When on the ground, you will mostly find these rodents standing on their hand limbs. While the courting takes place on land, Otters return to the water to mate. For the most part, the beaver vs. otter argument lies with properly identifying which pest is the problem. What can I look for on land? The males and females usually live in different circles, but with the onset of the mating season, the former approach the latter. The shallow ponds created by beavers usually support an abundance of food items for otters. After an absence of more than a century, its range is … There are only two species of beaver. The otter subfamily Lutrinae forms part of the family Mustelidae, which also includes weasels, polecats, badgers, as well as others. Have you ever been confused between an Otter and a Beaver before? Since Beavers have brown skin, their names are quite justified. This webbing is unique to this piscivorous swimming mustelid. Their ears are more prominent than the Otters, round and black, placed at the side of their eyes. When attempting to identify the animal by sight, if you don’t know the basic physical differences between the species, the animals can be mistaken for each other. Hi, I am Elise McDonald, a wildlife blogger, and author. (27 kilograms) and are 23 to 39 inches (60 to 100 centimeters) long. The Old English terms find their way back to the Proto-Indo-European language term “bhebhrus”, which means “brown” or “bright”. An otter doesn’t dig its own den, preferring instead to use burrows abandoned by other wildlife. River otters as a whole look quite similar to weasels. Since all the living species of Otters are either semiaquatic or aquatic, the name seems fitting for them. All four feet of the Otter are webbed to help them swim. Though they share similar habitats, distinguishing between beavers vs. otters is easy because they differ in appearance and behavior. Today, you can find about thirteen species of otters in the world, with the rest of their siblings extirpated. All otters have webbed feet to help propel them through the water, and most species have sharp claws. Since Otters are dependent on their prey for food, a depletion in the aquatic life is a serious threat to their survival. If you take a closer look at their family, you will find that all the different species of Otters are together grouped in the subfamily of Lutrinae. On the other hand, a muskrat is smaller than a beaver so that, the beaver will overpower it. Mink: … The average weight of a Beaver is about 22 kgs, while Otters usually weigh between 7-11 kgs. In some species, weaning takes only 8 months. For example, otters are longer and slimmer than heavier, stockier beavers and are known to be agile swimmers. Consider a castor mound on the edge of a pond, as castor isn’t as appealing to river otter. Both the male and female Otters part ways right after the mating season, whereas Beavers raise their kits together as a couple. It means that water is the central habitat of all Otter species. You can usually see a muskrat’s whole body when it is swimming… The name “otter” is derived from the Old English terms “otor” or “oter”. Sea otters vs. river otters Many people don’t know the difference between sea otters and river otters — but, with a little info, you’ll be able to tell right away. Additionally, these pests can stunt the growth of ornamental plants and trees, as well as block pipes when building their dens. The American beaver (Castor canadensis) typically weighs 60 lbs. In the Piedmont region, otters make good use of beaver ponds, often using abandoned beaver lodges as den sites. The beaver is a member of the order Rodentia. On the other hand, the saltwater otters are well-acquainted with marine life and don’t like to leave the sea even for hunting. Otters have a long, slim, and glossy body like that of seals, whereas Beavers have a rounded body like other rodents. These rodents enjoy eating the inner bark of trees in particular. Beaver has sharp teeth and more mass that helps him to attack its opponent easily. How do otters swim and move? However, that’s where all the similarities between the two end. Another noticeable difference is the tail. While beaver remnants have been found in otters a few times, the vast majority of studies show no sign of beaver ingestion by otters. It's also a species of management concern for some landowners. The American beaver is a native mammal that plays an important ecological role in our watersheds. 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