1. Size and weight: Sea otters are relatively small marine mammals. Adults typically measure between 1.2 to 1.5 meters (4 to 5 feet) in length and weigh between 14 and 45 kilograms (30 and 100 pounds). Females (called "females") are generally smaller than males (called "bucks").
2. Body Shape: Sea otters have a streamlined, torpedo-shaped body that is well-adapted for swimming and diving. Their bodies are long and slender, with a broad chest and narrow tail.
3. Fur: Sea otters have one of the thickest and densest fur among mammals. Their fur consists of two layers: a dense underfur that provides insulation and a longer, coarser outer layer that helps repel water. The density of their fur can reach up to 1 million hairs per square centimeter (1.5 million hairs per square inch).
4. Color: Sea otter fur color can vary depending on the geographic region and subspecies. Typically, they range from dark brown or black to various shades of reddish-brown or golden. Some sea otters may also have lighter or silver-tipped fur.
5. Head and Face: Sea otters have a small, rounded head with a broad, flattened snout. Their eyes are large, dark, and located on the sides of their head, providing them with a wide field of vision. They also have long whiskers that help them sense their surroundings and locate prey.
6. Paws and Claws: Sea otters have webbed feet that are adapted for swimming. Each foot has five long, strong claws that are used for grasping prey, grooming, and holding tools.
7. Tail: Sea otters have a broad, muscular tail that is flattened at the base and tapers to a point. Their tail is used for balance, steering, and thermoregulation.
Sea otters are fascinating marine mammals known for their dense fur, playful behavior, and ecological importance in kelp forest ecosystems. Their physical adaptations and unique features allow them to thrive in their coastal habitats and play a crucial role in maintaining marine ecosystems.