Littermates are puppies or kittens that are born in the same litter, meaning they share the same mother and were born around the same time. Typically, a litter can consist of several siblings, and they often develop strong bonds with each other during their early weeks of life. Growing up together, they learn important social skills and behaviors from one another. When adopting a pet, some people consider taking home two littermates. While this can be enjoyable for the pets, it may also present challenges, such as difficulty in training and potential dependency on each other. It's essential for owners to provide individual attention to each littermate to ensure they develop into well-adjusted pets.