Fascinating Facts About Sea Otters
Tool Use
Sea otters are among the few non-human animals known to use tools. They often use stones or other hard objects to crack open the shells of mollusks and shellfish. While floating on their backs, otters cleverly use their chests as a table for their tools and food.
Fur for Insulation
Sea otters have the densest fur of any animal, with 600,000 to 1,000,000 hair follicles per square inch. This luxuriously thick coat traps air against their skin, providing insulation and buoyancy. Unlike many marine mammals that rely on blubber, otters depend on their fur to stay warm in cold waters.
Playful Behavior
Play is a hallmark of sea otters’ lives. They are often observed sliding down muddy or snowy slopes, juggling rocks, or engaging in water games. Beyond fun, these activities help otters develop survival skills and strengthen social bonds within their groups.
Ecosystem Engineers
By feeding on sea urchins, sea otters help prevent overgrazing of kelp forests. In doing so, they act as ecosystem engineers, maintaining the balance of marine habitats. Healthy kelp forests, supported by otters’ presence, provide shelter and food for diverse marine species.
Social Creatures
Sea otters are highly social and often gather in groups called rafts, which can include dozens of individuals. These rafts provide safety, especially for mothers with pups. Female otters are nurturing and cradle their young on their chests to keep them safe and warm.
Sea otters are more than just adorable marine mammals — they are keystone species vital to coastal biodiversity. Protecting them ensures the survival of kelp forests and the overall health of ocean ecosystems. 🌊🦦
