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Sleep can follow a physiological or behavioral definition. In the physiological sense, sleep is a state characterized by reversible unconsciousness, special brainwave patterns, sporadic eye movement, loss of muscle tone (possibly with some exceptions; see below regarding the sleep of birds and of aquatic mammals), and a compensatory increase following deprivation of the state, this last known ...
The Eurasian otter (Lutra lutra), ... Hunting mainly takes place at night, while the day is usually spent in the Eurasian otter's holt (den) – usually a burrow or ...
For most otters, fish is the staple of their diet. This is often supplemented by frogs, crayfish and crabs. [12] Some otters are experts at opening shellfish, and others will feed on available small mammals or birds. Prey-dependence leaves otters very vulnerable to prey depletion. Sea otters are hunters of clams, sea urchins and other shelled ...
Because otters sleep in the water, they need ways to not float away. It's believed that holding hands keeps otters sleeping in groups, which is their preference. When they hold hands, no one gets ...
Diurnality, plant or animal behavior characterized by activity during the day and sleeping at night. Cathemeral, a classification of organisms with sporadic and random intervals of activity during the day or night. Matutinal, a classification of organisms that are only or primarily active in the pre-dawn hours or early night.
“To minimize risk to pets do not allow pets to range freely or to approach wildlife, including otters.” Ecosystem signal Close-up photo of an otter eating a fish in Bradenton on Jan.18, 2023
The North American river otter (Lontra canadensis), also known as the northern river otter and river otter, is a semiaquatic mammal that lives only on the North American continent throughout most of Canada, along the coasts of the United States and its inland waterways. An adult North American river otter can weigh between 5.0 and 14 kg (11.0 ...
Otters usually bask in the sun or can return undercover to sleep. [1] Walking on land is awkward for Cape clawless otters so they are observed to either walk slowly or do a seal-like trot. The tail can either be carried off the ground with its tip curving upwards, or dragged on the ground leaving a distinct trail. [1]