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英国广播公司报道，据发布在英国皇家学会《生物学通讯》杂志上的报告称，日本研究者发现，太平洋中一种名为“Chromodoris reticulata”的海参能够丢弃、再生、重新使用其阴茎。研究者称其阴茎为“一次性阴茎”。他们认为，它是第一种能使用“一次性阴茎”交配的已知生物。 A sea slug that is able to detach, re-grow and then re-use its penis has surprised scientists. Japanese researchers observed the bizarre mating behaviour in a species called Chromodoris reticulata, which is found in the Pacific Ocean. They believe this is the first creature known that can repeatedly copulate with what they describe as a "disposable penis". The study is published in the Royal Society's journal Biology Letters. Male and female The sex life of the sea slug is complicated even before detachable organs come into play. Almost all of these creatures, which are also known as nudibranchs, are thought to be "simultaneous hermaphrodites". This means they have both male and female sexual organs and can use them both at the same time. Bernard Picton, curator of marine invertebrates at the National Museums Northern Ireland, explained: "The genital apparatus is on the right hand side of the body. So two nudibranchs come together and one faces one way and one faces the other way, with the right hand side of their bodies touching. | 
