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.
Fun facts. Like other owls, the boreal owl has eyes that face forward. This gives it depth perception. The kind of vision you have when you look through two eyes instead of one. Also like other owls, one of its ear holes is higher than the other.his robin-sized owl also has a black forehead, a black rim around its face, and a yellow bill. It has no ear tufts. Size: The boreal owl is generally 9 to 10 inches long. Its wingspan is about 21 inches.