Some cats live outside. 
Some cats live outside. 
These cats hunt for food. They eat small animals. They can be very good hunters. This can hurt other wild animals.
Many cats live in cities. Some live on big farms. 
Some cats live in groups. They are called colonies. These cats stay near people. They find food near homes.
It is hard to help these cats. People try to help them. They want to keep them safe.
A feral cat is a pet cat that lives outdoors. 
Many cats live in groups called colonies. 

Feral cats can be a big problem for nature. They are one of the worst invasive species on Earth. An invasive species is an animal that moves to a new place and causes harm.
There are about 480 million feral cats in the world.
A feral cat is a domestic cat that lives outdoors without an owner. 
Feral cats live in many different types of places. They often settle near human homes like cities, towns, or farms. On farms, they might live in colonies inside barns. These farm cats hunt for food like rats and voles. In the wild, they can become top predators in many areas. This is especially true on islands where native animals have no natural enemies.
History shows that cats have traveled with humans for a very long time. People in ancient Egypt valued cats for killing snakes and rodents. This need to protect grain may be why cats were first domesticated. Traders from places like Phoenicia and Etruria carried cats on ships. Roman armies also helped spread cats to new lands like Britain. Eventually, sailors and settlers brought cats to places like Australia. In Australia, these cats became feral after their offspring lived away from people.
Feral cats can cause big problems for the natural world. 
People use different names for these cats depending on where they live. 
A feral cat is an unowned domestic cat, known scientifically as *Felis catus*, that lives outdoors and avoids human contact. 
Feral cats follow specific behavioral patterns to survive in the wild. They tend to establish a home range, which is the specific area where a cat lives and hunts. The size of this range varies based on several factors, including the cat's age and whether it has been neutered. Generally, male cats maintain home ranges that are two to three times larger than those of females. These ranges can span from very small areas to several kilometers. Most feral cats stay near human settlements to ensure they have access to food or prey.
There are different ways to categorize these animals depending on their relationship with humans. Some people use terms like "street cat," "alley cat," or "community cat" interchangeably with feral. However, rescuers and veterinarians often distinguish between "stray" and "feral" cats. A stray cat is typically an owned cat that has wandered away from its home. In contrast, a feral cat has lived in the wild for a long time. In some environments, like agricultural farms, cats may live in colonies. 
The history of the domestic cat is closely tied to human civilization. Many scientists believe cats were first domesticated because they protected grain crops from rodents. In ancient Egypt, cats were even venerated for killing venomous snakes. The spread of cats across the globe likely began in Egypt. Phoenician and Etruscan traders carried cats on ships to the Mediterranean islands. Later, Roman armies helped spread cats to places like Britain. 
In some regions, feral cats have been mistakenly classified as unique wild species. In 1929, Louis Lavauden proposed the name *Felis reyi* for a specimen from Corsica. This cat was smaller and darker than the European wildcat. In 1930, Ernst Schwarz proposed *Felis lybica jordansi* for a specimen from Mallorca. These were later determined to be feral populations descended from domestic cats. Similarly, a specimen from Crete was once called *Felis silvestris cretensis*, though it is now considered an introduced feral cat.
Feral cats are a major concern for environmental conservation. Biologists rank them among the 100 worst invasive species on Earth. An invasive species is an animal that moves into a new area and causes harm to the local ecosystem. 
Different countries have different rules for managing feral cat populations. In Italy, it has been illegal to kill feral cats since 1991. In cities like Rome, veterinarians use surgical neutering to manage colonies. In Australia, the government identifies tackling feral cats as a top priority for its Threatened Species Strategy. Some groups suggest "trap-neuter-return" programs to control breeding, but scientific evidence shows this is not effective at controlling populations. The way we talk about these cats, such as using the term "community cat," can also influence how much public support they receive for management.
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