Yes, maned wolves can swim.
Maned wolves (Chrysocyon brachyurus) are known to be capable of swimming, although they are not as proficient as some other canid species. They have been observed swimming in rivers and streams, and have even been known to cross rivers and lakes in search of food or shelter.
One study published in the journal “Mammalian Biology” found that maned wolves were able to swim for short distances, but they were not as agile or efficient in the water as other canid species such as otters or foxes. The study also noted that maned wolves tend to avoid swimming whenever possible, and will often seek out shallow water or land-based routes to travel.
Another study published in the journal “Acta Theriologica” observed maned wolves swimming in a river in Brazil, and found that they were able to swim for distances of up to 100 meters at a time. However, the study also noted that the wolves were not able to swim for long periods of time, and would often rest and hide in vegetation along the riverbanks to avoid predators.
In addition to these studies, there have been numerous anecdotal reports of maned wolves being observed swimming in the wild. For example, a report from the International Union for Conservation of Nature (IUCN) described a group of maned wolves swimming across a river in Argentina, and a report from the World Wildlife Fund (WWF) described a maned wolf swimming in a lake in Brazil.
Overall, while maned wolves are not as adept at swimming as some other canid species, they are capable of swimming and will do so when necessary to survive or find food.