NIMR INCIDENT REPORT FORM B:ALTERNATE LIFE-FORMS
Hairy, dog-like mutation.
Artifical atmosphere (Dr. Braddock's) caused mutation of the captain into a dog-like creature, great physical strength, with severe and uncontrollable rage.
Antidote worked under pressure to nutralize the affliction and return the captian to normal with no lingering affects (hopefully-Doc will be keeping an eye on him).
Genetically Engineered, hostile
All remaining mixtures have been destroyed, aboard Seaview and ashore. The formula has been classified.