The fascinating Portuguese Man-of-War - a colorful masterpiece of nature (00016744)
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Description: The Portuguese Man-of-War (Physalia utriculus) is a fascinating creature belonging to the genus of colonial siphonophores. Each Portuguese Man-of-War is a colony of polyps, each with a specific role to play. When the distinctive, blueish glimmering gas bladder becomes visible, extreme caution is advised. The tentacles of this marine organism can reach lengths of up to 10 meters in Physalia utriculus and are highly dangerous. With up to 1000 nematocysts per square centimeter, the Portuguese Man-of-War has formidable weapons at its disposal. Its tentacles move rhythmically to transport captured prey to the mouth opening. The venom, composed of various proteins, acts directly on nerve cells, leading to hyperexcitation and constant muscle contraction. Contact with the tentacles can result in respiratory failure and cardiac arrest. Immediate medical attention is crucial in case of injury by the Portuguese Man-of-War.
Location: Western Cape, Küste Gansbaai, South Africa
Date of Capture: 14.08.2005