Some breeds, like Pomeranians and Chihuahuas, are just very small dogs by nature. They're pretty much always going to fit into a teacup, at least as puppies. Larger breeds have to either be cross-bred with smaller breeds, or inbred (eek! - leads to all kinds of problems!) to produce smaller animals. Incredibly, people are currently trying to breed "teacup" labs and huskies.
Another major concern with these tiny pets is that the adorable-ness leads people to adopt pets without really thinking. Last fall, Huffington Post reported that animal shelters were finding themselves overrun with "handbag" and "teacup" dogs.
If you are looking for a tiny pup, start your adoption search with your local pet shelter. And remember, as you look at these adorable cups o' cuteness, that each animal is a real animal, not a toy, and needs real love!
Here are 9 adorable photos tiny animals in teacups!