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.
What do they look like? Snowy owls are the largest bird species in the arctic. They are 63 to 73 cm long and have an average wingspan of 170 cm. Females are larger and heavier than the males. Females weigh 1550 to 1600 grams, and males weigh 1450 to 1500 grams. Snowy owls are white with brown spots and bars. Females are usually darker with more markings than males. Young snowy owls are darker with more marks than adults. Snowy owls have yellow eyes. Their legs and feet are covered in white feathers that protect them from the cold weather. (Grzimek, 1972; Kielder Water Bird of Prey Centre, 1999; Living Planet, 1999; Parmelee, 1992)