Blood is mostly liquid, with numerous cells and proteins suspended in it, making blood thicker than pure water. The average person has about 5 liters (more than a gallon) of blood. A liquid called plasma makes up about half of the content of blood.
Feet and Beak. Like other birds in the raptor group, owls of all species use their beaks and talons to defend themselves. An owl's feet are equipped with particularly long, sharp and curved claws, which he can dig into an adversary and use like hooks to tear and rip at flesh.wls can't always successfully defend themselves from other animals, particularly their prey. Great horned owls, for example, are often found either dead or injured as a result of would-be prey like skunks and porcupines fighting back.
1 If a Great Horned owl was the same size as a human, its eyes would be as big as oranges. 2  Great Horned owls take life-long mates. 3  They wonât build a nest together, but will raise their young in the abandoned nests of other birds such as hawks, eagles and crows. Canadian and Pacific Northwest Great Horned owls are very dark, while the birds found in arid regions are usually very sandy in color. 2  In the Arctic they are practically white. 3  If a Great Horned owl was the same size as a human, its eyes would be as big as oranges. 4  Great Horned owls take life-long mates.