| Version | Summary | Created by | Modification | Content Size | Created at | Operation |
|---|---|---|---|---|---|---|
| 1 | Encyclopedia Editorial Office | -- | 1018 | 2025-05-28 08:00:24 |
Otters are small to medium-sized carnivorous mammals belonging to the family Mustelidae, which also includes weasels, badgers, martens, and ferrets. Otters are known for their playful nature, streamlined bodies, and semi-aquatic habits. There are 13 extant species of otters that inhabit a range of environments from freshwater rivers to coastal marine ecosystems. Otters are remarkable for their adaptations to an aquatic lifestyle, including webbed feet, dense fur, and specialized behavior patterns related to hunting and social interaction.