Birastrop

The Birastrop are a race of creatures whose lungs can safely breathe in cyanide. Dr. Mehendri Solon was able to obtain Birastrop lungs and put them in Morbius' body. (DW: The Brain of Morbius)


 * The Birastrop may be space faring, which allowed one of their members to crash on Karn. Alternatively, another race may have brought one there accidentally or Solon may have already had it in his collection.