Wolves of the Calla (The Dark Tower, #5) by Stephen KingRoland Deschain and his ka-tet are bearing southeast through the forests of Mid-World on their quest for the Dark Tower. Their path takes them to the outskirts of Calla Bryn Sturgis. But beyond the tranquil farm town, the ground rises to the hulking darkness of Thunderclap, the source of a terrible affliction that is stealing the towns soul. The wolves of Thunderclap and their unspeakable depredation are coming. To resist them is to risk all, but these are odds the gunslingers are used to. Their guns, however, will not be enough....
Set in a world of extraordinary circumstances, filled with stunning visual imagery and unforgettable characters, the Dark Tower series is unlike anything you have ever read. Here is the fifth installment.
Many animals can still see colour in the dead of night
The evolution of the dog-like family over the last 40 million years has been very successful Wang and Tedford The wolf Canis lupus , the largest living member of this family, has evolved unique physical attributes that aid it in hunting food — its vision system is one of these. Wolves are carnivores that chase their prey, often at dusk, dawn, and during the night. They need the ability to see prey clearly at long distances, over a wide field of view, and in poor light. A good way to understand how wolves see is to compare their vision with ours. We are primates, mammals that include lemurs, monkeys, apes, and us. Our eyes are pointed straight ahead.
How do wolves live together? How do wolves communicate? Are wolves dangerous to humans? Wolves are large, predatory canids once common throughout North America, Europe, Africa and Asia, now living mostly in remote wilderness. They are the largest living members of the canid family, which also includes foxes and coyotes.
Canines relay information with their eyes, especially for group hunting, suggests new research. The color of the face around the eye, the eye's shape and the color and shape of both the iris and the pupil are all part of the elaborate eye-based communication system, according to the research, which could apply to humans as well. Sayoko Ueda of the Tokyo Institute of Technology and Kyoto University led the study, which compared these characteristics of the face and eyes among 25 different types of canines. The researchers identified three basic patterns:. A-type: Both pupil position in the eye outline and eye position in the face are clear.
The wolf is a large member of the canine family. It is not known for sure just when the divergence occurred that split the ancestors of our domestic dog, C. Early man was probably followed by a wolf like creature that scavenged on the remains of his kills.
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In general, Gray Wolves measure from 66 to 96 cm 26 to 38 inches at the shoulder, and from to cm 40 to 58 inches from head to the base of their tail. Tail length measures from 33 to 51 cm 13 to 20 inches. A Wolf's average weight ranges from 27 to 45 kilograms 60 to pounds ; however, some Wolves have been recorded in extremes of 18 to 80 kilograms 40 to pounds. Wolves are covered in a moderate length pelt across most of their body. The color of their fur may range from pure black to pure white, with any tint or shade of gray, tan, cream, ochre yellow-gold , sienna reddish brown , and brown between.