Otters need to eat a lot of food. It’s part of the reason we wish we were otters, so we could consume as much food as them without having to worry about our diet. “The otters, which need to consume 25 percent to 35 percent of their body weight every day to maintain their metabolism and keep themselves warm in the cool waters, are divided into three “dietary guilds”: Deep-diving otters that dine on abalone, urchins, and Dungeness crab; medium divers who subsist on clams, worms, and smaller shellfish; and those that stay in shallower waters, feeding on black snails.” They’re genius. To keep their species growing and thriving, they’ve figured out a system to divide themselves for the best survival strategies possible (Mental Floss).
Otters are sociable creatures, and they love to rest in groups. A group of them is called a raft. Researchers have reported seeing over 1,000 otters resting together. As we’ve mentioned earlier, to keep themselves from drifting away, they’ll wrap themselves in seaweed and hold hands while they sleep. This behavior is not just cute, it’s also an example of their strong social bonds and cooperative nature. Otters are highly social animals that communicate with each other through a variety of sounds, including chirps, whistles, and growls. They also use body language to convey information, such as arching their backs to display aggression or rolling onto their backs to signal submission. Otters have a complex social structure that includes family groups, territories, and hierarchies, and they are known to engage in playful activities such as sliding down muddy banks or chasing each other around (DOI).
Believe it or not, about 90% of sea otters live in Alaska. “Many live in the waters surrounding public lands including Kodiak National Wildlife Refuge, Kenai Fjords National Park, and Glacier Bay National Park. Southern sea otters range along the mainland coastline of California from San Mateo County to Santa Barbara County, and San Nicolas Island.”Both sea otters and river otters face threats in Alaska, including habitat loss, pollution, and over-harvesting. However, efforts are underway to protect these beloved creatures and ensure their survival for future generations to enjoy. Visitors to Alaska can observe otters in their natural habitats, either by taking a boat tour along the coast or hiking along the banks of rivers and lakes. (DOI).
Otter couches, also known as otter dens or holts, are shelters that otters build for themselves and their families. Otters are known for their cleverness and adaptability, and they use a variety of materials to construct their couches, including sticks, mud, and vegetation. They often build their couches near water sources such as rivers, lakes, and coastlines. Otter couches serve several purposes for otters. They provide a safe and secure place for otters to rest, sleep, and raise their young. Otters typically have one or two litters of pups each year, and the couch provides a warm and protected environment for the pups to grow and develop. Otters also use their couches as a place to stash food and other items, such as toys or rocks. (Bristol Otter Survey).
Otters are playful animals known for their curious and adventurous nature. While they typically spend most of their time in the water hunting for fish and other prey, they also enjoy exploring their surroundings on land. It’s not uncommon for otters to chase and play with small creatures they encounter, including butterflies. Otters chasing butterflies made the news. In an adorable clip, a family of otters is spotted chasing a butterfly around at the Memphis Zoo in Tennessee. They stole the hearts of thousands who saw the photos and videos of them chasing the butterflies around.
Otters love people and will do anything they can to help them. This includes helping fishermen maximize their haul. In Bangladesh, fishermen have been training otters to act as herders and chase large schools of fish into the nets for centuries. According to Time Magazine, the fishermen use otters “because they catch more fish than we can alone,” and the otters don’t catch the fish but help chase them towards the fishing nets. The “fishing is usually done at night, and the otters can help fishermen catch as many as 26 pounds of fish, crabs, and shrimp (Time).
There are 13 species of otter in total, but that doesn’t mean they’re safe from endangerment. Five of them are endangered, five are near-threatened, and two are considered vulnerable. Out of all the species in the world, the North American river otter is of the least concern. Mainly, they’re threatened by pollution, destruction of their habitat, poaching, and overfishing, most of which can be stopped and prevented by humans. Rogue fishing gear also poses a threat to them, which is yet another thing humans can easily change. According to Oceana, “it is thought that oil spills pose the greatest threat due to the proximity of sea otters to major tanker routes and their susceptibility to hypothermia if their fur comes into contact with oil.” The best way we can prevent this is to start rethinking how we treat the world. Humans are the biggest threat to nature, anyway.
Because they’re fragile and necessary for the ecosystem, the U.S. and international law have reinforced laws protecting sea otters. Otters were “hunted to the edge of extinction by fur traders in the 18th and 19th centuries, the few remaining sea otters (about 2,000 scattered in remnant colonies throughout the North Pacific rim) were first protected by the International Fur Seal Treaty in 1911. Sea otters in the United States received additional protections with the passage of the Marine Mammal Protection Act and the Endangered Species Act in the 1970s” (DOI). Reading this eases our anxiety. It looks like most humans are doing everything they can to help these little critters survive.