#fotd899

[afactaday]

#aFactADay2023

#899: the cnidocil is the organelle protruding from the cnidocyte that detects threats. it has both mechano- and chemo-receptors, so it can detect pressure and chemical imbalances. so if you see an anemone, don't poke it, because it'll waste its poison on you! a 2012 study said that phototransduction is involved in the cnidocils and i think that's a bit above my paygrade. something something photosensitivity-led diurnal feeding routines....