Cephalopods
Mimic Octopus
Thaumoctopus mimicus · Cephalopod mollusk — family Octopodidae; described in 2005 after its late-1990s discovery on Indonesian muck
Plenty of octopuses match backgrounds; the mimic octopus impersonates other animals. First noticed on Sulawesi muck in the late 1990s, it forages exposed on bare silt in daylight, and its survival act is a repertoire: flattening into a gliding flounder, trailing banded arms like lionfish spines, or hiding all but two arms in a burrow and waving a convincing banded sea krait. Which impression appears seems to track which predator threatens. Longer lists get claimed — jellyfish, anemones, mantis shrimp — and deserve some skepticism; the core three are well documented. The animal itself is slight, brown-and-white banded, arms like linguine, probing worm holes across featureless slopes. Whole dives at black-sand sites are built around finding one. Stay off the silt, follow at arm's length, and let the show be voluntary.
أين ومتى تراها
"مقيم" تعني أن معظم الغطسات في هذه الوجهة ستُمكّنك من مشاهدتها؛ "موسمي" تعني أنها متواجدة بشكل موثوق خلال الأشهر المذكورة؛ أي شيء آخر فهو مكسب غير متوقع، وليس شيئًا يُعتمد عليه في التخطيط.
| الوجهة | الموثوقية | الأشهر | ملاحظات |
|---|---|---|---|
| Bali & Nusa PenidaIndonesia | Occasional | طوال العام | |
| Lembeh StraitIndonesia | Occasional | طوال العام | |
| AnilaoPhilippines | Occasional | طوال العام | |
| Dumaguete, Dauin & Apo IslandPhilippines | Occasional | طوال العام | |
| Banda Sea & AmbonIndonesia | Occasional | طوال العام |
أفضل شهر، في لمحة
فهمها
الموئل: Bare silt and black-sand flats near river mouths and muck bays, foraging around worm holes and burrows it can dive into.
النطاق: Indo-Malayan region — Indonesia and the Philippines through to northern Australia and New Guinea.
السلوك: Forages exposed in daylight on featureless bottom, switching between impersonations — a gliding flounder, trailing lionfish-like arms, or a banded sea krait waved from a burrow — apparently matched to the threat at hand.
النظام الغذائي: Small crustaceans and fishes probed out of burrows with linguine-thin arms.
الحجم: عادةً حوالي 0.4 m; موثَّق حتى عمق 0.6 m (arm-span; the arms are strikingly slender).
كيف تتصرف في حضوره
Follow at arm's length off the bottom, never dig, corral, or bait, and let every impersonation be the animal's own idea.
الحفاظ على البيئة البحرية
Not reliably assessed; its narrow, developable coastal habitat and value to dive tourism argue for keeping muck bays healthy.
المواقع المعروفة بها
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مقاطع الفيديو روابط مضمّنة لقنوات أصحابها أنفسهم — لا نستضيف شيئاً ونُشير إلى المصدر دائماً.