A small pore or opening bordered by or containing spine-like structures, often found in sponges and other marine organisms.
From Greek 'akantha' (thorn) plus 'poros' (pore, passage). This term emerged in marine biology as scientists studied the detailed anatomy of sponges and coral structures.
Acanthopores in sponges are like tiny security gates—they're small openings with spiny rims that help the sponge filter water and protect itself from unwanted particles or predators simultaneously.
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