Muskrats: Small Semi-Aquatic Rodents with a Recognizable Scent

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Muskrats are semi-aquatic rodents that are typically found near bodies of water. They are known for their chubby appearance and distinct musky smell, which comes from their scent glands. Muskrats are important to their ecosystems as they help maintain wetlands and provide food for predators such as coyotes and eagles. They are also valued for their fur, which has been used in clothing for centuries. Despite their name, muskrats are not actually rats and are part of the same family as beavers and porcupines.

Wild Animals

Muskrats may be similar to beavers, but they are different animals. People know very little about these chubby rodents, except for a 1970s song about their love life. While muskrats are not trending like the royal couple, they still have their unique qualities worth exploring.

What are Muskrats?

Muskrats (Ondatra zibethicus) are often mistaken for beavers because they both live semi-aquatic lifestyles. However, muskrats have vertically flattened tails that act as rudders when swimming, while beavers have flat tails like paddles. Margaret Gillespie, a naturalist with Squam Lakes Natural Science Center in Holderness, New Hampshire, explains that beavers build dams that create ponds where muskrats can live. Muskrats have short, thick fur that can range in color from red to black, and they weigh between 1 to 6 pounds. Their sparsely haired tails make up a significant portion of their 12 to 24-inch length. Muskrats are skilled swimmers and can paddle up to 3 miles per hour with their partially webbed hind feet. They can stay underwater for up to 20 minutes and prefer marshes with lots of vegetation and a steady depth of at least 4 to 6 feet of water.

Muskrats are native to most of North America except for coastal Florida, Georgia, and South Carolina. Marshes provide them with a variety of food, and they eat about a third of their body weight every day. Their diet consists of roots, stalks, and cattails, with the occasional frog and insect. Unlike beavers, muskrats don’t store food for the winter and instead swim under the surface ice to access roots. Their poor vision, hearing, and sense of smell make up for their aquatic skills.


Muskrats have long, flat tails that they use as rudders to propel themselves through the water.
Vince Pahkala/Wikimedia Commons/(CC BY-SA 3.0)

Muskrats and Their Lodges

Muskrats build dome-shaped “lodges” out of mud and vegetation on partially submerged objects. These lodges can be up to 3 feet tall and contain dry chambers with at least one underwater entrance. Muskrats burrow tunnels starting from a slanted embankment that can extend up to 15 feet. To stay warm during winter, muskrats huddle together in chambers.

Muskrats prefer to live in large families within their own territories. Female muskrats are capable of having one to three litters of five or six kits every year. They nest in chambers inside their lodges and have a gestation period of about a month. Although kits are born blind, they are quick learners and can swim at about 21 days old. However, muskrat moms practice tough love and will kick their offspring out of the lodge when they turn a month old or if the space becomes too crowded. They can live for up to 10 years in captivity and three to four years in the wild, which explains their truncated pregnancy and childhood.

Muskrats are active all the time but prefer to sleep in and are most active during midafternoon through dusk. They do not like quick temperature changes, especially when it’s hot and dry, but their homes and burrows protect them from the elements. Muskrats spend most of their time in the water and build their lodges on tree stumps or anything partially submerged in water.

Although muskrats are harmless creatures, they do have predators, including raccoons, owls, hawks, foxes, minks, otters, and bald eagles. Humans also trap them for food and fur. Muskrats communicate by gland secretion and have a musky odor, which serves as a scent marker. Farmers are not fans of muskrats since they eat farm grain and sometimes plug the drainage tiles in their fields. Moreover, muskrats have a habit of building their homes near dikes or dams, which can weaken the structures and eventually destroy them.

When a bald eagle snatches up a muskrat for dinner or a fur trader traps one, it helps keep the population in balance and protects more dikes and dams from destruction. Although it may seem cruel, it’s all part of the circle of life.

Interestingly, the ‘soft rock’ song “Muskrat Love” was super popular when Captain and Tennille covered it in 1976. It peaked at No. 4 on the Hot 100 chart for the husband-and-wife duo. When they sang the song at a White House dinner in July 1976 honoring Queen Elizabeth II, a guest who attended the dinner was later quoted as saying it was “in very poor taste” to sing about mating muskrats before the Queen.

FAQ

1. What are muskrats?

Muskrats are semi-aquatic rodents native to North America. They have a stocky, fat body with short legs and a long, pointed tail. Their fur is usually brown or black and is thick and waterproof.

2. How do muskrats behave in the wild?

Muskrats are excellent swimmers and spend a lot of their time in the water. They build lodges out of vegetation in shallow ponds and marshes. They are also known for their signature musky smell, which is caused by a gland that secretes a strong-smelling oil that they use to mark their territory.

3. What do muskrats eat?

Muskrats are herbivores and eat a variety of aquatic plants, including cattails, water lilies, and pondweed. They also eat certain types of roots and tubers that grow in the water.

4. Are muskrats dangerous to humans?

No, muskrats are not dangerous to humans. They are generally shy and will avoid contact whenever possible. However, they can become aggressive if they feel threatened or cornered.

5. What is the lifespan of a muskrat?

The lifespan of a muskrat is typically around 3-4 years in the wild. However, muskrats in captivity have been known to live up to 10 years.

6. What is the purpose of muskrats in the ecosystem?

Muskrats play an important role in the ecosystem by helping to maintain wetland habitats. Their lodges and burrows provide shelter for other animals, and their feeding habits help to keep certain plant species in check.

7. How do muskrats reproduce?

Muskrats mate in the spring and fall, and females give birth to litters of 4-8 young after a gestation period of around 30 days. The young are born blind and hairless and are weaned after about a month.

8. What are the predators of muskrats?

Common predators of muskrats include coyotes, foxes, owls, and snakes. They are also sometimes hunted by humans for their fur.

9. Are muskrats endangered?

No, muskrats are not currently considered endangered. However, habitat loss and pollution are threats to their populations, and some states have restrictions on hunting and trapping muskrats.

10. Can muskrats be kept as pets?

It is not recommended to keep muskrats as pets, as they are wild animals and can be difficult to care for properly. In addition, it is illegal in many states to keep muskrats as pets without a special permit.

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