Difference Between Possum And Rat | Do They Look ...

Published 2026-05-03 · 3 min read

Learn how to differentiate between possums and rats, their behaviours, and how to manage infestations effectively.

Understanding the difference between possums and rats is essential for homeowners in Australia, particularly when it comes to pest control. While both animals can invade your property, their behaviour, appearance, and the problems they cause differ significantly. This article will help you identify these creatures and provide practical advice on how to manage them.

Physical Differences Between Possums and Rats

One of the most straightforward ways to distinguish between possums and rats is by their physical characteristics.

• Size: Possums are considerably larger than rats. An adult possum can weigh between 2.5 to 5.5 kilograms and measure up to 1 metre long, including the tail. In contrast, typical roof rats weigh around 200 to 500 grams and measure about 40 to 50 centimetres long.
• Fur and Colour: Possums have thick, greyish-brown fur, while rats usually have a slick, coarse coat that can be brown or black. Possums also have a more bushy tail compared to the long, scaly tail of a rat.
• Face: Possums have a pointed face with large eyes and ears, whereas rats have a more rounded face with smaller ears.

Behavioural Differences

Understanding the behaviour of these animals can also help you identify them correctly.

• Nocturnal Habits: Possums are nocturnal marsupials, active mainly at night. They will often be seen foraging for food in gardens or rummaging through bins. Rats can also be nocturnal but are more adaptable and may venture out during the day.
• Social Structure: Possums are generally solitary creatures, while rats tend to live in large groups or colonies. If you notice signs of multiple animals, it is likely rats.
• Feeding Habits: Possums primarily consume fruits, leaves, and flowers, while rats are omnivorous and will eat almost anything, including grains, meats, and scraps.

Signs of Infestation

Identifying the signs of an infestation can help you take action before the problem escalates.

• Possums: Look for droppings that are dark and oval-shaped, about the size of a grape. You may also find signs of chewing on foliage and fruit trees.
• Rats: Rat droppings are small and pointed, often found in clusters. You may also notice gnaw marks on wood or plastic and greasy smudge marks along walls.

Health Risks Associated with Possums and Rats

Both possums and rats can pose health risks to humans and pets.

• Possums: While possums are generally harmless, they can carry parasites like ticks and mites. They can also spread diseases like leptospirosis.
• Rats: Rats are known carriers of various diseases, including hantavirus and leptospirosis, which can be transmitted through their droppings, urine, and bites.

How to Manage Possums and Rats

Effective management of possums and rats requires different approaches.

• For Possums: Use humane traps to relocate them. Ensure your property is secure by sealing entry points, especially in roofs and basements. Consider installing possum-proof fencing in gardens.
• For Rats: Seal all potential entry points, including gaps in walls and around pipes. Use traps or baits designed specifically for rats, and maintain cleanliness to reduce food sources.

If you need assistance with pest control, consider posting a job on our TaskerAsker platform to receive free quotes from local tradies.

Conclusion

Knowing the difference between possums and rats is crucial for effective pest management. By understanding their physical and behavioural traits, you can better protect your home from infestations. If you suspect an issue, don’t hesitate to seek professional help. Post a job today on TaskerAsker to connect with local experts who can assist with your pest control needs.

Frequently asked questions

What are the main differences between possums and rats?

Possums are larger, nocturnal marsupials with bushy tails, while rats are smaller, social rodents with scaly tails.

How can I identify a possum infestation?

Look for dark, oval-shaped droppings and signs of chewing on plants or fruit trees.

What health risks do possums and rats pose?

Possums can carry parasites, while rats are known carriers of diseases like hantavirus and leptospirosis.

How can I prevent possums from entering my home?

Seal entry points, install possum-proof fencing, and use humane traps for relocation.

What should I do if I have a rat infestation?

Seal gaps, maintain cleanliness, and use traps or baits specifically designed for rats.