Robuta

https://www.bas.ac.uk/data/our-data/publication/bipolar-patterns-of-intraspecific-competition-in-bryozoans/ Bipolar patterns of intraspecific competition in bryozoans - British Antarctic Survey Polar shores probably represent the most dynamic and extremely disturbed environments on the globe. Nevertheless intense battles amongst sessile organisms for... intraspecific competitionbritish antarcticbipolarpatternsbryozoans