Observed / described structure
Dense fur, compact forelimbs, broad webbed hind feet
- Class / group
- Mammalia
- Phylum
- Chordata
- Environment lens
- marine, coastal
- Movement
- swim, walk
- Support
- internal skeleton
- Covering
- fur
Field record · Mammalia
Sea otter
Enhydra lutris · a source-backed example record for comparing structure, variation, environment, and representation.
How not to overread the picture
Variation: Body size and coat condition vary; behavioral tool use is not visible from anatomy alone.
Representation: A floating pose can reveal behavior, but a structure diagram should keep fur, limb proportions, and habitat evidence separate.
Process / function synthesis: A marine mustelid that relies heavily on fur for insulation and often forages in shallow coastal systems.
Evidence note
ADW documents dense insulating fur, coastal habitat, and tool use among sea otters.
Trait constellation
dense furwebbed hind feetforepawstool use
Trait chips are editorial retrieval labels for this universe. They are not a formal diagnostic key.