Mice and Rats
Understanding rat behavior and feeding habits
Content updated: July 24, 2026
Key takeaways
- Rat behavior includes living in social groups, communicating through vocalizations, body language, and pheromones, and being most active at night.
- Rats like to eat grains, seeds, nuts, fruits, vegetables, pet food, trash, and compost.
- Rats are highly adaptable and can survive in cities, forests, rural areas, and cold climates by burrowing, foraging, and using their strong sense of smell.
- Rats are known for their intelligence, problem-solving abilities, and excellent memories, making them valuable in scientific research.
- Signs of a rat problem can include droppings, gnaw marks, nests, and seeing rats during the day.
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The adaptability and survival skills of rats
Rats are highly adaptable rodents known for their intelligence, social behavior, and ability to thrive in a wide range of environments. Understanding rat behavior, what rats like to eat, and how they survive alongside humans can help you recognize the signs of a rat problem and take steps to prevent infestations.
Understanding rat behavior
Rats are highly social animals that communicate through ultrasonic vocalizations, body language, and pheromone deposition. Rat behavior often involves grooming themselves and other rats, which helps maintain social bonds and hygiene. Rats also form social hierarchies within their large groups, which are fittingly called a "mischief."
Rats are nocturnal, meaning they're most active at night. Seeing rats during the day can be a sign of an infestation. They are also known for their remarkable intelligence, excellent memories, and problem-solving abilities, making them valuable to scientific research.
What do rats eat?
Rats are picky eaters but consume various foods if their preferred options are unavailable. As omnivores, they might eat trash, compost, and pet food. In the wild, rats typically feed on grains, seeds, nuts, fruits, and vegetables. They may occasionally feed on smaller animals or insects, but hunting is less common.
The adaptability and survival skills of rats
Rats are highly adaptable, thriving in diverse environments such as cities, rural areas, forests, and cold climates. An unusual rat fact is that they're able to tread water for up to three days which can help them survive in sewers, lakes, and other areas. They possess an exceptional sense of smell, which can help them locate food and navigate their surroundings.
Rats are skilled foragers and can travel up to 300 feet or greater from their nests, depending on resources. A common rat behavior is burrowing, where they create extensive tunnel systems in hidden spots like walls, in the ground, or in tree cavities for nesting and food storage.
One of the most alarming rat facts is their rapid reproduction; a single female can produce multiple litters a year, helping populations grow even in challenging conditions. Because they're primarily nocturnal, rats are able to avoid some predators and humans. Their intelligence allows them to solve problems and navigate complex environments, helping them find food and avoid traps.
Rats in science and history
Rats are widely used in scientific research because of their physiological and genetic similarities to humans. This makes them valuable models for studies in genetics, behavior, disease, and drug development. Their contributions to science have led to significant breakthroughs in medicine and psychology.
Even today, rats can transmit various diseases through direct contact, droppings, and urine. On the other hand, pet rats are popular for their friendly behavior, ease of training, and relatively low maintenance. They can form strong bonds with their owners and be trained to perform various tricks.
How smart are rats?
Rats are incredibly smart animals capable of learning and remembering complex tasks, solving puzzles, and navigating mazes. Scientists have used rats in psychology experiments for over a century due to the similar structure of their brains to the human brain and their decision-making abilities. Another interesting rat behavior is that, according to researchers, rats are able to find a good pattern and stick to it. They're also less likely to second-guess themselves than humans.
Rats in homes
Rats in homes can be dangerous because they can spread diseases, trigger allergies and asthma, damage structures, contaminate food, and reproduce rapidly, leading to large infestations. Luckily, rats are one of the 25 pests1 included in our ongoing pest control plan, PestFree365!
An initial inspection will help our technicians determine where rats are entering your home, where they nest, and how large the infestation is. With regularly scheduled treatments, our professionals can help get rid of rats and prevent them from returning. Schedule an inspection today!
1Coverage includes: "House" Ants, Bird Mites, Indoor Ticks, Cockroaches, Carpet Beetles, Fabric Moths, Overwintering Insects, Ground Beetles, Centipedes, Crickets, Earwigs, Firebrats, Millipedes, Clover Mites, Pillbugs/Sowbugs, Psocids, Scorpions, Silverfish, Paper Wasps, Springtails, Spiders, Stored Product Beetles, Stored Product Moths, Mice, and Rats.
