Cat

The cat (Felis catus) is a small carnivorous mammal. It is the only domesticated species in the family Felidae and often referred to as the domestic cat to distinguish it from wild members of the family. The cat is either a house cat or a farm cat, which are pets, or a feral cat, which ranges freely and avoids human contact. A house cat is valued by humans for companionship and for its ability to hunt rodents. About 60 cat breeds are recognized by various cat registries.

Cats have a strong flexible body, quick reflexes, sharp teeth and retractable claws adapted to killing small prey. They are predators who are most active at dawn and dusk (crepuscular). Cats can hear sounds too faint or too high in frequency for human ears, such as those made by mice and other small animals. Compared to humans, they see better in the dark (they see in near-total darkness) and have a better sense of smell, but poorer color vision. Cats, despite being solitary hunters, are a social species. Cat communication includes the use of vocalizations including meowing, purring, trilling, hissing, growling and grunting as well as cat-specific body language. Cats also communicate by secreting and perceiving pheromones.

The cats are one of the most popular pets in the world. People are mainly attracted to them because of their playful and curious nature, combined with their love of grooming, make them a good pet for relieving stress. Still, some people are afraid of them. The most common reasons are hygiene and their scratches and bites which could leave a wound.

Cats are also famous for their role in the thought experiment, Schrödinger's Cat, in which a cat was used for the subject of the experiment. This experiment is related to Quantum Mechanics. It depicted how an object could simultaneously exist in all possible configurations, but observing it forces the object into just one of those possible states.

Questions:
1. What is the Family of Cat?
2. What are crepuscular predators?
3. How do cats communicate?
4. What is the name of the thought experiment which used cat as its subject?
5. How does the thought experiment relates to Quantum Mechanics?