Abstract
Through my science research project I aimed to find out the differences between equine and human monocular and binocular vision span. I went about investigating this by measuring eyesight through the use of a chalk configuration, orange marker and observing the horses’ eyes to determine the span of their vision. To determine the human vision span I used a different method of verbal communication. From my experiment I have discovered that horses do have a larger field of monocular vision and a smaller area of binocular vision compared to human vision. These results supported my original hypothesis which was expected from my background research. From my specific experiment I was able to come to the conclusion that on average horses have
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Horses in the wild are prey and need to have a large field of vision in order to give early warning of predators so they have the ability to outrun them. They have large eyes, the largest of all mammals, giving them the ability to detect even the slightest movement in their surroundings. Horses eyes are positioned on the corners of the head maximising vision and are placed high on the head allowing the horse to have the largest possible field of vision while there head is lowered, grazing. (Cockett, 2010)
Horses exceptional peripheral vision comes with its drawbacks. Due to the positioning of the eyes on the side of the head, horses have a blind spot directly in front and behind them, and areas of indistinct vision depending on the specific horse and how far the eyes are set out. The area in front of the horse is generally a true blind spot and sometimes an area of indistinct vision, this area is a triangular shape- wide at the eyes and comes in to a point about 90- 120cm in front of the horse (Johnson, 2011). The area behind the horse is slightly wider than the width of the horse’s body and does on for an unlimited distance if the horse stands with its head
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From background research I know this is a feature common to animals of prey as the ability to identify movement at great distances with a large field of vision gives them early warning of predators allowing them time to have the ability to outrun predators. From my experiment I was able to conclude that on average horse monocular vision has a span of 325°. Humans on the other hand have a much smaller range of monocular vision due to the close proximity of the eyes. The average result from my experiment for human monocular vision was 120°, 205° smaller than horse monocular vision. For binocular vision human vision span was slightly greater than horses with humans having 70° of vision and horses only having 60°, which I also predicted in my hypothesis.
The results from my experiment I believe are reliable as a sample size of three was used with the experiment conducted three times and then the results averaged. I also believe my results were accurate as each of the measurements were only several degrees apart, a very slight difference which could be due to the reliability of the measuring or due to a slight difference in the visual span. The experiment was also valid as all proper equipment has been used including a straight angle tool to ensure accuracy with measurement and control variables has been monitored to ensure a valid
First off when purchasing your horse you have to watch for proper balance. Balance is arguably the most important aspect when examining a horse since it is fundamental for both movement and performance, this is determined by the horse's bone structure.(Duberstein) Some aspects that play a role in determining the balance includes the horse's weight along with the proportions and angles of the body. A horse can be light weighted or heavy weighted and still balanced if its bone structure allows for equal distribution of that weight. Appropriate balance of a horse allows it to carry itself in a well mannered fashion.("Test Your Eye for Horse Conformation") Along with a horse's balance, structural correctness plays a major role in
There are also several patterns. Some of them are dappled (pattern of rings) bay, black, or gray, chestnut or liver chestnut with a flaxen mane mane and tail, and surprisingly, being born a dark color and turning gray in the prime (this most often occurs in Arabians and Lipizzaners, and is not early aging, but merely a pattern). There are also many different markings a horse can have. Some occur on the face and some on the legs and the eel (or dorsal) stripe even appears on the back! Socks (white hair below the toe joint) and stockings (white hair below the ankle joint) are the most common leg markings. There are also tiger stripes, dark stripes on the legs. This is a very primitive marking, like the eel stripe and the colors dun and buckskin. Sometimes you can also see speckles of the horse's main color in socks or stockings. The hoof can have different markings, too, such as the blue (black) hoof, white hoof, and striped hoof (a mix of the two). There are also many facial markings. Some include blazes (long, wide stripe down the face), stripes (long, narrow stripe down the face), lanterns (completely white face), snips (small white mark on the nose), stars (small white mark on the forehead),
To evaluate conformation and gait analysis, an example of a thoroughbred racehorse was examined to show structure and balance; good conformation within perimeters; way of going through photographic evidence to support gait analysis. The horse is a 6 year old, 15.3hh thoroughbred racehorse who has a good pedigree, has won and placed in races on
Horses' anatomy enables them to make use of speed to escape predators and they have a well-developed sense of balance and a strong fight-or-flight response. Related to this need to flee from predators in the wild is an unusual trait: horses are able to sleep both standing up and lying down. Female horses, called mares, carry their young for
Both bats and humans have a threshold of approximately 10-7 Apostilbs, which is a measurement of light density. However, a flying foxes’ acuity is maintained much longer as illumination decreases until roughly 10-4 Apostilbs, which is when acuity begins to fall off as demonstrated by the Figure 3. Likewise, both humans and flying foxes have similar positioned eyes toward the front of the skull providing binocular vision. This means that both eyes are being used at the same time in order to create a greater depth of field. Both visual systems contain a majority of the same structures, but overall, they are completely different systems due to the fact that we are not nocturnal, nor do we need to be.
Some people use whips and other things but horses have one of the thickest hides out there, so the wip does not hurt them at all. Also people make noises to make their horses go faster too but it doesn’t hurt the horse all it does is annoy them, so it makes them faster.
Horses blind spots is directly in front of them and directly behind them. Horses can see some colors. However, they don't see color like humans do. Horses naturally see the blue and green colors of the spectrum and the color variations based upon them, but cannot distinguish red (Equisearch).
Without proper position the rider will fall or cause both themselves and the horse to look awkward. The riders movements affect how the horse moves. Think about playing the game chicken in the pool. The bottom person's balance and movements totally depend on the movements the person they're carrying. When that person starts to fall left the bottom person starts to go left.
2 and 3D Video techniques - following a large racehorse performing high-speed over-ground exercise over long distances (Khumsap S., 2004).
Owls have global stereopsis and use disparity, the inconsistency, as a depth cue with hyperacute exactness.
In a recent 2011 study horses were asked to preform a detour task (Baragli , 2011). This detour task relates to spatial orientation, which is “the ability to orient the environment and find to shortest path to an objective,” (Baragli p227, 2011). Horses are flight animals and their speed helps them get away from predators. The ability to find the shortest path increases their ability to survive when a predator is attacking them. Also, without the ability to navigate the environment horses wouldn’t be able to find food or mates (Baragli,
such as other land or sea mammals, birds and fish have either much superior eyesight,
Horses have near 360 degree vision. They do however have blind spots directly in front and behind them. It is extremely dangerous to stand behind a horse as they are liable to kick out if they get scared by anything as kicking out is their way of defending themselves.
Our eyes are vital organs because they help us visualize our surroundings. But are our eyes perfect in seeing what’s right in front of us? Sadly I learned in our evolution, nature messed up at one point and gave us blind spots in our eyes. This project shows why we have these blind spots, how to discover them, and how big they are. I researched on how our eyes see things; why when one eye is closed, the other eye sometimes can’t see what’s in front of it. I also found during my research a formula that is used to estimate the size of a human eye’s blind spot. I performed an experiment using Blind Spot Test card I made to verify the existence of blind spots in my eyes. I also collected data
Horses are incredible creatures that have shaped history around the globe. There are over 150 different breeds of horses that have countless skills. Between their extraordinary intelligence and obedience, horses have worked at the mercy of humans for many different reasons. Their expertise ranges from being one of the fastest modes of transportation on land, to helping fight in wars, herd cattle and even serve as a source of recreation or sport (Duren). Horses have been present throughout all of history up until present day specifically in religions or cultures, war, and their uses in modern times.