How to know that this is a cat? - briefly
To identify a cat, observe its physical characteristics such as pointed ears, whiskers, a slender body, and a tail, along with behaviors like purring or grooming.
How to know that this is a cat? - in detail
Determining whether an animal is a cat involves observing specific physical characteristics, behavioral traits, and biological features. Cats are small to medium-sized carnivorous mammals belonging to the family Felidae. One of the most distinctive features of a cat is its body structure, which includes a flexible spine, retractable claws (except for cheetahs), and sharp, pointed teeth adapted for hunting. Their fur varies in color, pattern, and length, but it typically covers the entire body, providing insulation and camouflage. Cats have a triangular-shaped face with forward-facing eyes that are large and adapted for excellent night vision. Their pupils are vertically slit, which allows them to adjust quickly to different light conditions. The ears of a cat are pointed and highly mobile, enabling them to detect even the faintest sounds, a trait essential for hunting. Another identifying feature is their whiskers, which are highly sensitive tactile hairs located on the sides of the face, above the eyes, and on the forelegs. These whiskers help cats navigate their environment, especially in the dark. Behaviorally, cats are known for their agility, balance, and ability to land on their feet due to their righting reflex. They are solitary hunters by nature, though domesticated cats often exhibit social behaviors with humans and other animals. Cats communicate through a combination of vocalizations, such as meowing, purring, hissing, and growling, as well as body language, including tail movements, ear positions, and facial expressions. Domestication has led to a wide variety of breeds, each with unique traits, but all share the fundamental characteristics of the species Felis catus. By carefully examining these physical and behavioral attributes, one can confidently identify an animal as a cat.