Rats appear in many shapes, sizes and colours across the globe. The phrase types of rat covers wild species, domestic varieties and occasional mislabellings such as the naked mole-rat. In this guide we explore the main types of rat that people commonly encounter, how to tell them apart, and why knowing the difference matters for health, pest control and pet care. By the end, you’ll have a clearer understanding of the diversity within the world of rats, from city sewers to cosy homes.
What Do We Mean by Types of Rat?
In everyday language we talk about the types of rat to refer to true rats of the genus Rattus, as well as other rodents that are colloquially called rats. This guide focuses on the most common groups: the wild rats, including the brown rat and the black rat, as well as domestic varieties such as the fancy rat and standard laboratory rat. When people speak of types of rat, they want to understand appearance, habitat, behaviour and risk. We also emphasise the differences between true rats and other rodent relatives that are sometimes mistaken for rats in conversation or media.
Types of Rat You Might Encounter in the UK
In Britain, the living landscape hosts two dominant wild types of rat and several others that occasionally appear in specific environments. The two mainstream residents are the Brown Rat and the Black Rat. These two are the most frequently discussed in pest-control literature, public health guidance and wildlife surveys. Although less common in everyday life, the Polynesian rat and the Asian house rat illustrate the global reach and variety of the types of rat beyond our shores. Recognising these different forms can help with practical decisions, from securing food stores to choosing the right kind of enclosure for a pet.
The Principal Wild Rats: Brown Rat and Black Rat
The Brown Rat (Rattus norvegicus) — The Norway Rat
The Brown Rat is one of the most familiar types of rat in urban Britain and around the world. Larger than many other rodents, it has a robust body, a blunt snout and a tail that is shorter than its body length. Its fur is coarse and ranges from brown to grey. Brown Rats thrive wherever food is available and they are excellent burrowers, often found in basements, sewers and field margins. The species has a remarkable capacity to adapt to human environments, which is why it features so prominently in pest surveillance and control programmes. In terms of handling and coexistence, recognising the Brown Rat is essential for practical hygiene and preventive strategies in both domestic and commercial settings.
The Black Rat (Rattus rattus) — The Roof Rat
The Black Rat is smaller and more slender than the Brown Rat, with a pointed snout, large hind feet and a tail that often exceeds the body length. Its fur tends to be dark brown to black on top with a lighter underside. Historically the Black Rat travelled by ships and became established in port cities, earning names such as ship rat or roof rat because of their penchant for elevations, including roof spaces and upper levels of buildings. In many UK towns, Black Rats are less common than Brown Rats but remain a recognised type of rat in certain microhabitats, particularly where food packaging, fruit trees or attic spaces provide suitable resources. Distinguishing these two wild types is not merely an exercise in taxonomy; it informs where to focus preventive measures and monitoring efforts.
Other Wild Rat Species You Might Encounter
Polynesian Rat (Rattus exulans)
The Polynesian Rat is more often found in island environments in the Pacific region. It is generally smaller than the Brown Rat and exhibits a range of fur colours from grey to brown. In some settings, they are introduced pests that impact native ecosystems, but outside their native range you are unlikely to meet them in the UK. This species helps illustrate how the types of rat can vary across continents and how human movement has shaped rodent communities worldwide.
Asian House Rat (Rattus tanezumi)
This species is widespread across parts of Asia and has also established populations in urban areas outside its native distribution. It resembles the Black Rat in size but can show varying fur tones and distinctive patterns. When studying the types of rat globally, the Asian House Rat demonstrates how human commerce and settlements create new rodent assemblages in cities and ports around the world.
Domestic Rats and Their Varieties
The Fancy Rat: Pet Varieties
Many people enjoy keeping rats as pets, commonly as the Fancy Rat. These animals are domesticated descendants of wild rats that have been bred for temperament and appearance. Coat colours and patterns vary widely—from solid colours to multi-coloured patterns such as hooded, berkshire, capped, shaded and dumbo varieties. A well-socialised Fancy Rat can be an engaging and affectionate companion, requiring enrichment, a safe living space and regular veterinary care. In discussions of the types of rat, the Fancy Rat stands apart as the domestic, sociable descendant of wild Rattus species.
The Lab Rat: Strains Used in Biomedical Research
Beyond pets, there are lab rats—highly valuable models in medical and biological research. Common laboratory strains include Wistar, Sprague-Dawley and Long‑Evans. Each strain has characteristic features such as coat colour, body size and temperament, which researchers select for specific studies. While lab rats are not generally the same as pet Fancy Rats, they share a common ancestry and belong to the same genus, Rattus. Understanding these types of rat helps in comprehending how scientific insights are generated and why certain strains behave in particular ways. For families with curiosity about science, this segment of the types of rat reveals how experimental animals contribute to knowledge while underscoring the importance of welfare and ethical oversight in research settings.
Other Rodents Referred to as Rats
Pack Rats (Neotoma spp.)
In North America the term pack rat is often used to describe woodrats in the genus Neotoma. They are not true rats in the genus Rattus but are part of the broader rodent family and are sometimes colloquially called rats. Pack rats build elaborate nests and carry treasured items in their dens, which gives them the “pack rat” nickname. This is a helpful reminder that the language around types of rat can vary by region and context. When you read about different types of rat, ensure you’re looking at the correct taxonomic reference for your purposes.
Naked Mole-Rat: Not a Rat
The naked mole-rat is a remarkable creature often discussed in popular science. It resembles a rodent and sometimes appears in conversations about rats, but it is not a true rat and belongs to a separate group known as mole-rats. Naked mole-rats live in complex eusocial colonies and have unique adaptations to subterranean life. They illustrate the importance of precise terminology when discussing the broader family of rodents and the diverse “types of rat” that exist in the natural world.
How to Identify Rat Species in Urban Areas
In practical terms, distinguishing rat species comes down to a few key features: size and proportions, tail length relative to body, ear size, muzzle shape, fur colour and behaviour. For example, the Brown Rat tends to have a stockier build, a shorter tail relative to body length, and a coarse fur coat. The Black Rat is leaner, with a longer tail and proportionally larger ears. When surveying a site for evidence of different types of rat, look for droppings shapes (Brown Rat droppings are typically larger and more blunt than Black Rat droppings), gnawing patterns, and entrance routes such as gaps in foundations or sewer entries. Always observe from a safe distance and coordinate with pest professionals if you are dealing with an infestation. Being able to identify the type of rat present helps tailor control measures and reduces the risk to people and pets.
Why The Distinction Matters: Health, Behaviour and Pest Management
Different types of rat can carry different health risks and can have varying levels of interaction with humans. Brown Rats and Black Rats are both capable of transmitting diseases, but their habits differ. Brown Rats are often burrowers and frequent underground spaces, while Black Rats are more arboreal and more likely to climb. Recognising which type is present can inform control strategies, such as securing stores, sealing entry points, and selecting humane traps. The distinction is also relevant for public health monitoring, as some species may be more associated with particular pathogens or environmental conditions. When in doubt, especially in urban settings or near food production facilities, consulting local pest control professionals is wise and prudent for safe, compliant action.
Humane Coexistence: Prevention, Caring for Pets and Ethical Control
Humane coexistence with rats—whether wild or domestic—focuses on prevention and welfare. In urban environments, careful waste management, securing pet food, and reducing access to shelter are the first lines of defence. For pet owners with Fancy Rats, ensuring enrichment, appropriate housing, regular social interaction and veterinary check-ups promotes wellbeing. For those involved in research, strict ethical guidelines govern the care and use of lab rats, including housing, enrichment and minimising distress. The overarching principle is to balance human needs with the welfare of the animals across all types of rat. Practical steps such as snug sealing of gaps, clean storage of food and responsible ownership all contribute to safer, more harmonious coexistence.
Frequently Asked Questions About Types of Rat
What are the most common types of rat in the UK?
The Brown Rat (Rattus norvegicus) and the Black Rat (Rattus rattus) are the principal wild types you will encounter in many parts of Britain. The Brown Rat tends to be more common and adaptable, while the Black Rat is rarer in many urban zones but still present in historic port locations and certain green corridors.
Are pack rats true rats?
Pack rats (Neotoma spp.) are not true rats; they belong to a different genus. They share some similarities in appearance and habit but are taxonomically distinct from the genus Rattus. When discussions hinge on legal pest control or disease risk, sticking to true rats (Rattus spp.) ensures accuracy in guidance.
Can naked mole-rats be kept as pets?
Naked mole-rats are wild animals with special social structures and are not suitable as pets. They require complex welfare provisions and are typically studied in laboratory or conservation contexts rather than kept in domestic settings. This distinction underlines the importance of species-specific care and ethics when considering any animal in the broader category of types of rat.
Conclusion: The Rich Variety Within the Types of Rat
The world of rats is varied and fascinating. From the bustling, adaptable Brown Rat and the agile Black Rat to the domesticated Fancy Rat and the scientifically important lab rat, the category types of rat encompasses a wide spectrum. Understanding these distinctions helps with accurate identification, responsible ownership for pets, and informed approaches to pest management. Whether your interest is ecological, veterinary or practical, appreciating the diversity among rats deepens our respect for these intelligent and successful survivors of the urban landscape. The journey through the types of rat reveals not only a taxonomy, but a story of adaptation, human interaction and the many ways in which small creatures shape our environment.