Chodníkový chomáč (Bosonožský)

Rarity: Uncommon (microhabitat specialist). The Chodníkový chomáč is most often mistaken for a dead, snow-flecked perennial clump until it “breathes” in a gust: stems subtly re-angle against the wind, and seedheads shed snow in deliberate, patterned taps. Appearance: Adult mass 0.6–1.2 kg, spanning 35–60 cm when fully unfurled. It presents as a bundle of brittle brown stalks, but each stalk is a muscular, keratin-cellulose composite “cirrus” with jointed nodes. At the base, a hidden, pale-grey collar (the cingulum) grips soil and curb cracks with rootlike tendrils. Under snow, the collar can flash faint blue-green bioluminescence along salt-wet surfaces, resembling reflected streetlight. Behavior & niche: It is a boundary scavenger that feeds on windblown organic dust, grit, and microalgae, plus trace fats from footwear and pet traffic. On cold Saturdays it becomes active around midday when pedestrians and weak solar gain slightly warm the curb; it uses that thermal gradient to extend cirri toward the sidewalk edge, “combing” for particles. When threatened, it collapses into convincing plant litter and stiffens its cirri to match nearby stem angles. Strengths/weaknesses: Superb camouflage and rapid posture control; tolerates -10 to +12°C by producing antifreeze glycoproteins. Weak to prolonged soaking above 5°C (molds out) and to aggressive raking, which can detach the collar. Unexplained phenomenon (plausible mechanism): Witnesses report a soft, dry clicking like seedpods counting. The clicks are cavitation pops from a specialized hydraulic system: brine absorbed from road salt shifts osmotic pressure, snapping microvalves in the cirri to create audible pulses used for short-range echolocation of moving legs and wheels. Humorously, locals say it’s “checking your steps” and will stop clicking if you apologize for walking on the snow.