Shell standing in Planaxis sulcatus: convergence of heat avoidance behavior in rocky shore gastropods?
Shell standing behavior, which allows snails living in the hottest upper rocky shore zones to avoid overheating, is reported here for the first time in a nonlittorinid snail. This was observed in Planaxis sulcatus which cohabits with the littorinid Echinolittorina malaccana, suggesting convergence of this behavioral trait.
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Affiliations: Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Brunei Darussalam
Appeared or available online: June 3, 2020