Although most digenetic trematodes (except for schistosomes) are hermaphroditic and thus, by definition, capable of self-fertilization, there is some evidence that cross-fertilization may be quite common and maybe even the norm. But it is unusual to catch trematodes in the act of fertilization. There is one exception - Tetracladium sternae is a trematode found in shorebirds such as terns and shearwaters and it is often found in copulating pairs.
Post and image by Mike Kinsella.
Great picture; it reminds me of a chromosome!ReplyDelete
I just a had to laugh at the thought of starting my Sunday with parasite porn!ReplyDelete