To Karen: Our shelter has recently received a number of "older" ferrets - around 4 years or so, and we have ours routinely screened for insulinomas by having a fasting blood glucose level checked. We've been getting readings in the 50 - 60 range, so I suggest if your ferret is 4 yrs or older, if you have no other blood work done, check the glucose level! Learn the signs of low blood sugar - they are there long before a ferret will have an outright seizure. Look for imbalances in their gaits, look for more-than-normal shivering and shaking, look for heavy sleep patterns. I realize with shelter ferrets it's a little harder when you don't know what they were like in their previous homes, but once you've learned to recognize the signs, they are not really hard to pick up. Debbie Riccio WNYFLFA Rochester, NY [Posted in FML issue 1562]