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August 2019

Are dogs really color blind?

 by yunus on 14 Aug 2019 |
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Researchers once thought dogs were colorblind, but new evidence is showing our canine companions see the world very similarly to how we do. For a long time, we believed our canine companions were colorblind, but new scientific research is shedding light on pets’ perception of color. Though Fido’s range of vision is limited compared to the range of colors humans see, our dogs do, in fact, see color. Unlike people, who have three types of color-detecting cells—called cones—in their retinas, dogs only have two. This is why our pets’ range of color vision falls between the yellow and blue spectrum. But how can we be sure of what our pets see? Experiments by a University of Washington scientist found that dogs’ perception of color is comparable to that of people with red-green colorblindness, a common abnormality in humans. What most of us see as red probably appears to be dark brown to our dogs, while green, yellow and orange probably to take a yellow hue. A study by researchers at the University of Bari backs these findings. In the experiment, the team used a variation of the Ishihara Test for Color Deficiency, which is used to test for colorblindness in humans. The test involves a series of colored circles depicting numbers, which are imperceptible to those with red-green colorblindness. To adapt this test for canine participants, the researchers designed plates showing a series of silhouettes of running cats. Based on results, they concluded that dogs could easily spot a bright red cat on a green background, but their perception of the silhouette dropped off when the cat was comprised of speckled light- and dark-red circles.   Dogs may be less able to distinguish color than humans,  but this does not mean their vision is inferior. Compared to ours, canines’ eyes contain more light-sensitive photoreceptors, allowing them to see well in dim light. From an evolutionary standpoint, this provided benefits such as allowing our pets’ ancestors to see better during dawn and dusk, when they were most likely to hunt and color vision was less crucial. Much like people with colorblindness, dogs developed other heightened senses to make up for their limited range of vision. Take, for example, Fido’s impeccable sense of smell, which is roughly 40 times great than our own.   While their vision capabilities are slightly different than ours, dogs see the world in a way that is comparable to what we see. Combined with Fido’s keen nose and other senses, our pets are more than adept at navigating their daily lives—even if their world does look slightly different than our own.  

How does Simparica work?

 by ben on 13 Aug 2019 |
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Simparica for dogs provides fast relief from parasites and the diseases they carry in one tasty treat, making pest protection no hassle for you and your pet. Simparica is the once-a-month flea and tick treatment proven to kill parasites fast. Available in a tasty treat that dogs love, each soft chew provides up to 35 days of protection, arming your dog against biting pests and the diseases they can carry. Like other oral flea and tick treatments, Simparicafor dogs works by entering your pet’s bloodstream immediately after ingestion. When a flea or tick bites, it is exposed to the formula’s FDA-approved active ingredient, sarolaner, which attacks and kills parasites fast. Within just three hours, Simparica effectively begins killing fleas and, after 8 hours, starts to kill ticks including the lone star tick, black-legged tick, brown dog tick, American dog tick, and Gulf Coast tick. Simparica has also been proven effective in relieving and preventing ear mites and mange. The long-lasting formula continues to control parasites for up to 35 days, providing continued relief from parasites and the diseases they carry. Simparica’s powerful ingredient sarolaner is an insecticide and acaricide that affects nerve cell function in invertebrates. It works by altering gamma-aminobutyric acid (GABA) and glutamate receptors, which both play a role in nerve transmissions. GAGA-gated channels help dampen nerve transmissions, which sarolaner disrupts to create an influx of transmissions in fleas and ticks. At the same time, the compound opens glutamate-gated channels, contributing to the flood of nerve transmissions. The resulting seizures are fatal to fleas and ticks, but because sarolaneris more effective on invertebrates than mammals, Simparica has been found proven safe for dogs during field trials. While adverse reactions were rarely seen, the most common side effects during a three-month field trial included vomiting, decreased appetite, weakness, lethargy, and softened stools. Though most reactions related to Fido’s digestive system, in a few isolated cases, dogs showed more serious side effects such as tremors, muscle twitching, and seizures. Simparica is available by prescription only, so be sure to discuss any history of seizure disorders with your veterinarian when discussing the best flea and tick treatment for your pet. Simparica is safe for dogs as young as 6 months old and weighing at least 2.8 pounds. The chewable tablets are available in doses for dogs of every size and, because Simparica is delivered orally, there’s no messy application or need to wait before bathing your pet. The treatment has not been evaluated for use in pregnant, breeding or lactating dogs, so these pets will need alternative flea and tick prevention. Talk to your vet about Simparica to provide your dog with safe, effective relief from biting parasites with one tasty, monthly treat.
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