What is that yellow blob growing on that crab?? It’s a parasitic barnacle (called a Rhizocephalan) that plays a bit of mind-control on its host. First, it destroys the crab’s genitals. And if that weren’t bad enough, it attaches itself onto its host and changes the crab’s behavior so it cares for the parasite as if it were its own young!

Marine parasites are pretty crazy, don’t you think? So does Smithsonian parasite researcher Katrina Lohan, who wrote a list of crazy and cool facts about marine parasites. Check it out!

Photo Credit: Hans Hillewaert

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  1. frenchgirlofflamode reblogged this from oceanportal
  2. wildlife-nerd reblogged this from dont-you-touch-that-shark
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  5. youandmeversuscrappytv reblogged this from uuiiioo
  6. thestraightwhisperer reblogged this from uuiiioo and added:
    Parasitic mind control is not all that strange! It’s really cool.
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  10. doo-da-diddy-diddy-dum-diddy-doo reblogged this from oceanportal and added:
    it also changes form from a larvae (i think? and eggs) to a fungus inside the crab once it settles. a way to tell if the...
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  14. nemertea reblogged this from onseeingandnoticing and added:
    Sacculina is best parasite.
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  26. bushwall reblogged this from oceanportal and added:
    the crab basically got married
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