Dogs are one of the best animals on this list. They are cute and serve as best friends to people, offering help and companionship. Truly, they are man's best friend.
All you have to do for a cat is get a box and fill it with sand. Also, they kill rats.
Wolves are the largest members of the dog family. In fact, wolves are very intelligent and are even more loyal than dogs. They work together as a pack and take care of each other.
Tigers are one of the most majestic and beautiful animals in the world. Other than that, they're the biggest (Siberian tigers, that is) and strongest cats in the world.
The most common dolphin is the bottlenose, as seen in pictures, but these are only one species of dolphin. The other species are also typically friendly, social, and just as intelligent as the bottlenose.
Penguins are awesome! They may look quite funny when waddling around, but that's what makes them unique.
They're very strong and are basically the superior versions of wolves (physically). As a pride, they're one of the most powerful animals in nature.
Although other animals may be cooler, fiercer, braver, cuddlier, and easier to take care of, it is the horse that carried humanity for centuries.
They sleep a lot, just like cats, and they climb trees, just like cats. Foxes are the only dog family that can climb trees.
Elephants can be loyal to you easily if you raise them properly. But people don't usually use elephants as domestic animals because they are difficult to handle.