in this section, other characteristics could also be added concerning a species life habit usefull to discerning patterns in how the species interact with their physical environment such as:

- free living
- tubicolous (active digger)
- burrow dwelling (sedentary, living in burrow)
- Encrusting (colonies with multiple point of attachment)
- Attached ( to hard substrates, requiring just one point of attachment)
- Parasitic (feeding on host)
- Anchored in the mud