11 Symptoms of Skin Cancer. There are many devastating diseases in the world and cancer is one of the most concerning. Not only is cancer the leading cause of death worldwide, but it also claims sizable disability and medical bills.
Owls have extremely large eyes in proportion to the size of their heads. In some of the larger species, such as the Great Grey Owl, the eyes are larger than those of most humans. Although owl eyes are well adapted for great visual acuity, there is a drawback.wls have extremely large eyes in proportion to the size of their heads. In some of the larger species, such as the Great Grey Owl, the eyes are larger than those of most humans. Although owl eyes are well adapted for great visual acuity, there is a drawback.
Facts About Owls You Don't Already Know. 1  Owls have large eyes to facilitate navigation in complete darkness. 2  They blink like humans do, but they also have a third eyelid that sweeps from side to side to help clean and lubricate their eyes, which canât move. 3  Their ears donât sit evenly on their heads.