How anglerfish survive parasitic sex.

The article offers information on the parasitic sex survival of the anglerfish, which resembles as an organ transplant. Topics discussed include lack of key genes in some species which involved in the body's immune response; views of Thomas Boehm, an immunologist at the Max Planck Institute of Immunobiology and Epigenetics in Freiburg, Germany, on issue; and adaptive immune system in fish which protects against infections but not parasitic sex.