Quokka The quokka is a small marsupial native to Australia.
Dolphins Dolphins are highly intelligent and social animals that are known for their playful behavior.
Dogs Dogs are another animal that is often associated with happiness.
Gorilla Gorillas are gentle giants that are known for their intelligence and social nature.
Capybaras The capybara is the largest rodent in the world.
Hyenas Hyenas are often seen as being scavengers, but they are actually very intelligent and social animals.
Penguin Penguins are social animals that live in colonies of up to 10,000 individuals.
Eels Eels are not typically thought of as being happy animals, but there is some evidence to suggest that they may actually be quite content.