Why do domestic cats meow?
Wild cats do not live in groups, but are solitary animals. Therefore, the only longer social contacts with them are between the mother and her children. Since their domestication about 10,000 years ago, cats have changed their behavior and the sounds they make to get humans to care for them and feed them. They look to us as a parent who feeds them. They have developed a language of sounds that are pleasing to the human ear, specifically for communicating with humans. They have also started imitating a baby's cry!
Because human babies are born extremely independent, the choral ears and brain preferentially hear baby sounds. Even when there are other louder noises! Because without care from adults, a human baby cannot survive. Domestic cats, imitating a baby's cry, attract human attention. That is, domestic cats meow mainly to communicate with people, and not so much with other cats (there they often hiss). In short - they are manipulating us!
Why are tigers orange?
-Because the prey they are stalking - the herbivores do not see the orange color, but perceive it as green. Thus, the orange tiger hidden in the green bushes is "invisible" for the herbivores!
Why do zebras have contrasting black and white stripes?
That's how they don't attract horseflies that carry diseases on them! Horseflies are attracted to large solid colored moving bodies because that is most likely to be an animal they can bite (cow, bull, horse, bison, etc.).
Why are dogs friendly?
The dog is the first domesticated animal in human history. His friendly behavior is likely due to a change in the canine stress-regulating melanocortin 2 receptor gene (Nature magazine June 9, 2022). That is, the domestic dog, seeing a person, does not fall into such stress as it develops in wild animals!
The text is from the Facebook profile of cardiologist Sotir MARCHEV