Animals have been living on this planet long enough to be more than just pretty creatures roaming the earth.
While some contribute by maintaining the balance in the ecosystem, others are even employed to contribute directly to human society.
These remarkable animals perform a range of tasks, from enhancing security to assisting during medical needs.
One distinctive factor that separates them from other animals is their ability to be perceptive and quickly learn actions expected of them by humans.
Let us take a look at some of these animals that have been used efficiently by humans to make the world a better, safer, and healthier place.
