Birth rates are declining, and millennials own more pets than any other age group. But experts say treating animals like kids isn't good for them.

Allegations include withholding food, forcing the kids to eat birdseed and dog food, along with the placement of “booby-traps” and cameras to prevent access to food and water and forced exercise.

Fish are the perfect starter pet for kids and adults, right? Well, it might not be as simple as you think. To avoid ...