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A posterior vitreous detachment (PVD) is a condition of the eye in which the vitreous membrane separates from the retina. [1] It refers to the separation of the posterior hyaloid membrane from the retina anywhere posterior to the vitreous base (a 3–4 mm wide attachment to the ora serrata ).
Dogs have ear mobility that allows them to rapidly pinpoint the exact location of a sound. Eighteen or more muscles can tilt, rotate, raise, or lower a dog's ear. A dog can identify a sound's location much faster than a human can, as well as hear sounds at four times the distance. [41] Dogs can lose their hearing from age or an ear infection. [42]
Police dog performing a search for explosives. Human uses for tracking dogs are dependent on many different factors. Specifically, the demands of a job often influence which kind of dog humans choose to train and employ. There are three different types of scenting dogs based on their affinity for air scents, ground scents and tracking scents. [6]
A dogsbody, dog's body, or less commonly dog robber is someone who does menial or drudge work. [1] Originally, in the British Royal Navy, a dogsbody was a semi-sarcastic colloquialism for a junior officer or midshipman. [1] A batman has a similar function. A rough American equivalent would be a package-handler, gofer, grunt, [2] lackey, or ...
Understanding the body language of dogs is particularly important in preventing dog bites, especially of children. [4] This communication can occur between dogs, or during a dog-human interaction. Such movements primarily involve the tail, the ears, and the head/body. [1] Tail-wagging is a common tail movement used by dogs to communicate.
Dogs are able to read and react appropriately to human body language such as gesturing and pointing, and to understand human voice commands. After undergoing training to solve a simple manipulation task, dogs that are faced with an insolvable version of the same problem look at the human, while socialized wolves do not.
Garret Wing is a dog expert and owner of American Standard K9. He shares incredibly useful and helpful tips on his social media channels about any and all things related to dogs.
The human–canine bond is rooted in the domestication of the dog, which began occurring through their long-term association with hunter-gatherers more than 30,000–40,000 years ago. The earliest known relationship between dogs and humans is attested by the 1914 discovery of the Bonn–Oberkassel dog , who was buried alongside two humans in ...