If you eat fewer calories than you burn, you'll lose weight. But when you're hungry all the time, eating fewer calories can be a challenge. Studies show people who eat 4-5 meals or snacks per day are better able to control their appetite and weight, says obesity researcher Rebecca Reeves, DrPH, RD.
1 Ferrets Unlimited charges $75 for a single ferret adoption , $125 for a bonded pair or $150 for a bonded triple.  Petco sells ferrets in allowable locations. Check the store locator , then call ahead for price and availability.
Parakeets at Petco, for instance, retail for about $5 to $29, depending on the time of year and species you adopt. For example, a normal scarlet chested parakeet can cost anywhere from $125 to $600, while a rosy Bourke can cost anywhere from $75 to $110; a Rubino female can cost upwards of $800. With so many species on the market, refer to our table below to see what the most popular types cost.