The octopus brain has folded lobes (a distinct characteristic of complexity), visual and tactile memory centers.

These ribs are a distinct characteristic of the species.

Over the years, the town centre has developed distinct characteristics on either side of the railway line.

Despite growing the same grapes, each region has their own distinct characteristics.

While each had its own distinct characteristics, there certainly must have still been a high degree of mutual intelligibility between these dialects.