The Dog Forms, Evaluations & Notes tab is a dependant tab of Dogs. You cannot create a Dog Forms, Evaluations & Notes record without relating it to a dog record. You should create a new record for each Dog Forms, Evaluations & Notes event except for Career Consideration records.
You can create Dog Forms, Evaluations & Notes records from it's tab or the dog's record using related lists. Filling it out from the Dog's record will auto-fill the Dog field.