Why do some cats love sweets? Isn’t they not able to taste the sweetness?
It is true that sweetness is almost impossible to taste
Conclusive evidence (Junior High School Biology Review):
Animals perceive sweetness and rely on specific sweetness receptors Tas1r2 and Tas1r3.
There are 247 bases missing on Tas1r2 in cats, and proteins that feel sweetness cannot be transcribed and synthesized normally. Tas1r2 is already a pseudogene that has lost its function. The taste function of animals in the Tas1r2 gene sequence of cats and dogs is actually related to TA's diet.
For example, omnivorous pandas, their energy consumption mainly depends on bamboo shoots, tender branches and berries (sweet flavor), so they have evolved super sweet receptors.
TA is also the only animal except primates who can taste artificial sweetener (aspartame).
Little pandas love to eat sweet apples
For example, giant pandas, forcing vegetarians to eat vegetarian food with the stomach of carnivorous animals. Umacats (recognizing meat) have degenerated, but bitter receptors (recognizing poisonous plants) have been enhanced...
As carnivorous users, cats (and lions and tigers) recognize amino acid umami receptors are much better than humans and dogs; and because they do not need carbohydrates, there is no feedback on natural sugars such as sucrose and saccharin and artificial sweeteners.
"Science" reveals:
people can only feel 2 umami flavors, L-glutamate (MSG) and L-aspartic acid, and cats, at least 6 amino acids can bind to their umami receptors, so why do you have to put your mouth on the cake?
A small number of cats may have been fed a similar taste when they were young, so they think that "this thing can be eaten, but I am used to it."
A cat that was fed bread when he was a child and rushed to eat when he grew up, but most of them were attracted by other ingredients such as fat, amino acids, etc. in these foods.
Cream, various egg amino acids and fat flavors in the cake embryo...
Of course, with the remaining Tas1r3 gene, some cats may be able to faintly sense a little sweetness in extremely high and high concentrations.
But most of the sweet "sugar" are artificial sweeteners
Cats can't taste this sweet taste of "technology and ruthlessness"
Why do some love to eat fruits?
What attracts cats is not the sweetness of fructose.
In addition to volatile compounds such as carotenoids and terpenes, some fruits also have a large number of amino acids and fatty acids that are close to the smell of meat.
Behaviorists speculate that cats may think that smelling like meat ≈ may be safe and edible.
For example, cantaloupe is a kind of fruit that can trick cats into
. Many times, cats are interested in food out of "curiosity".
Your eating, obstruction, and concealment... Many actions in the eyes of cats seem to be "hiding food", which arouses his interest.
Sometimes you are curious, you need to imitate and snatch...
If the cat is really curious, but you don't want to give it to him:
You can try to force it to him, recommend it crazy, and sell it desperately. You must let him smell it a few more...
This kind of thing will lose its appeal instantly, and the kitten turns his head and leaves.
An Easter egg: posing.