The elf owl, the smallest owl in the world, inhabits the deserts of the southwestern US and Mexico. Measuring 12-14 cm and weighing 35-55 grams, it is a proficient predator, hunting insects and small ...

Interestingly, Elf Owls’ nests often house tree ants, which act as natural cleaners by consuming leftover food scraps and parasites. It's a perfect example of nature's symbiotic relationships.