A video viewed more than 10 million times shows Nibi the beaver gathering sticks and pushing them toward the door.

“As a reward for her good behavior toward her new roommate, Nibi was allowed to have the rehab room to herself for an hour while Ziibi enjoyed the semi-aquatic enclosure,” read the video caption. “Nibi immediately started building a dam at the door where her roommate exited…you know…in case Ziibi tries to come back inside…”

According to the National Park Service, beavers build dams out of logs, rocks and mud. They use their strong front teeth to cut wood from trees and branches.

“Beavers build dams across streams to create a pond where they can build a ‘beaver lodge’ to live in,” the agency said. “These ponds provide protection from predators like wolves, coyotes or mountain lions.”

In addition to serving a purpose to the beavers, the ponds that are formed from these dams also help other wetland species and control soil erosion while reducing flooding, the NPS said.

In the video, Nibi is seen pushing a small pile of sticks in front of the door as the person taking the video laughs.

Jane Newhouse, the president and CEO of Newhouse Wildlife Rescue, told Newsweek that Nibi was rescued when she was about 2-weeks-old.

Found on the side of the road in Sturbridge, Massachusetts, Nibi weighed about one pound and her parents were nowhere to be found. She’s been at the rescue center for the last five months.

Ziibi is a new addition to the rescue center and a fellow orphaned beaver. Although Nibi was raised as a single beaver for several months because it is challenging to find orphaned baby beavers, Newhouse said they heard from a wildlife center in Rhode Island that they recently got a baby beaver a month ago.

“We had to work with state officials in Rhode Island and Massachusetts to have Ziibi transferred here in hopes that these two could be raised together because it’s in their best interest to bond with each other and not to people,” Newhouse said.

It has been a rocky road for these two, however, and Nibi’s indifference toward her roommate has been shown in other videos on the wildlife center’s page.

Nibi was only raised by staff at the wildlife center, who bottle-fed her and helped keep her clean.

“They’re very family-oriented animals, so we could not keep Nibi in a cage by herself,” Newhouse said. “It wasn’t healthy for her, so she’s very used to us.”

While that was OK when Nibi was younger, she said a successful release will require staff to spend less time with her.

“But we can’t just leave her isolated, which is why we’ve been trying to get her with Ziibi, but to no avail so far,” Newhouse said.

She explained that they tried introducing the two beavers to one another in a neutral area that they both have never been in before. Her theory is that Nibi is comfortable where she is and does not want a new friend.

Newhouse said staff has spent less time with Nibi, and she is hopeful that would push the reluctant beaver to bond with Ziibi, who is open to a friendship.

Of all the mammals the wildlife center rehabilitates, beavers spend the longest time at the center.

“They’ll be with us for at least two years,” Newhouse said. “They stay with their mom and dad and their family for two years, so it’s going to be a long rehabilitation.”

The rehabilitation process involves medical attention if needed. As they get older, they are paired with others of their own species and are moved to outdoor enclosures.

There, they have the opportunity to bond with their own species and get used to the outdoor elements.

Over time, these animals develop their healthy natural fear of humans and learn skills that are imperative to their survival.

While the road to friendship has been rocky for Nibi and Ziibi so far, Newhouse said she’s happy to see the video went viral and that so many viewers have fallen “in love” with beavers.

“One of the big things that we stress here is to help people to understand the wildlife that they live with, the wildlife that we’re surrounded by,” she said. “The more we understand these animals, the more we’re apt to make efforts to live alongside them and work with them.”

This is not the first animal video to have gone viral.

A video showing a cat holding its owner’s hand while watching television went viral, while another clip showed the sweet friendship between a puppy and a cat.

One video showing a one-eyed dog enjoying free sushi delighted viewers.