Mouse Lemur

The mouse lemurs are nocturnal lemurs that can only be found in Madagascar. These small creatures are the tiniest primates in the world, and unfortunately, are endangered, as are other species of lemurs. The mouse lemur is omnivorous, which means that their diet contains insects, arthropods, small vertebrates, gum, fruits, flowers, nectar and leaves. 

Being nocturnal, these tiny creatures have developed some auditory and vocal systems that help them survive and run away from predators. In addition, the mouse lemur has the smallest brain of all primates out there (around two grams). 

According to animal experts, mouse lemurs are just like humans because they can develop certain neurological disorders similar to Alzheimer’s disease and dementia in humans. 

Northern Pygmy Owl

The northern pygmy owl, also known as Glaucidium californicum, is the smallest species of owls that inhabit in North America. The adult northern pygmy owl is about 17 cm in length and lives in temperate, subtropical and tropical moist forest, savanna and wetlands. 

Their size and colors help them hide from predators and humans. In general, the female lays up to seven eggs and their nest is in different trees. During this process, the male northern pygmy owl hunts brings food and defends the territory. 

That being said, these tiny and cute owls feed on small mammals, and birds (they usually hunt at bird feeders) and various insects. The northern pygmy owls hunt by day and they perch on tops of trees.