I typed in that subject line on my browser. The link is below. There
are quite a few sites quoting ferrets as the third most popular pet.
I agree that is seems odd, considering birds and fish as pets.
http://www.bing.com/search?q=ferrets+third+most+popular+pet&qs=n

Debbie, Kindness Matters Ferret Rescue
Sponsor a rescue ferret for only $5 per month!

[Posted in FML 7340]