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Rats vs. Mice: How to Tell the Difference in Your Home

By EcoFusion Pest Control

Got something scurrying around your home? Not sure if it’s a rat or a mouse? Don’t worry — you’re not alone. These pests may look similar, but there are key differences that help you figure out what you’re dealing with — and how to get rid of them for good.

At EcoFusion Pest Control, we help homeowners across New Jersey and Pennsylvania keep their homes rodent-free. Here’s your simple guide to telling rats and mice apart — plus answers to the most common questions we get.

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1. Key Differences Between Rats and Mice

Size
Mice are small, about 2 to 4 inches long. Rats are much larger, typically 7 to 9 inches long.

Nose
Mice have a pointy, narrow nose. Rats have a wider, blunt snout.

Ears
Mice have large, floppy ears. Rats have small ears that sit closer to the head.

Tail
Mice have long, thin, slightly furry tails. Rats have thicker, hairless, scaly tails.

Droppings
Mouse droppings are tiny and pointed like rice. Rat droppings are larger and more rounded, like raisins.

Sounds
Mice make light scratching sounds. Rats make louder noises, including gnawing and thumping.

Smell
Mouse activity gives off a musty odor. Rats create a strong, ammonia-like smell that gets worse with time.

Behavior
Mice are curious and explore new spaces. Rats are more cautious and avoid new things.

2. Signs You Might Have Rodents

  • Droppings near food, in the kitchen, basement, or attic
  • Scratching or gnawing noises at night
  • Chewed wires, food containers, or furniture
  • Greasy rub marks on baseboards
  • Nests made from paper, cloth, or insulation
  • Pets acting strangely around walls or specific spots

Droppings near food, in the kitchen, basement, or attic

3. Why It Matters

Identifying the right pest helps:

  • Choose the right traps and bait
  • Find hiding places faster
  • Understand entry points
  • Prevent future infestations

Trying to treat the wrong rodent can waste time and money — and leave the problem unsolved.

4. EcoFusion’s Rodent Control Services

We offer:

  • Free home inspections
  • Custom treatment plans
  • Trapping and baiting
  • Rodent-proofing and entry-point sealing
  • Ongoing maintenance to prevent future issues

Our Plans:

  • EcoGuard Plan: Covers general pests with quarterly service
  • Rodent Shield Plan: Focused on rodent issues with follow-ups
  • Bundle Plan: Combine pest and rodent control for full protection

5. Frequently Asked Questions About Mice and Rats

How do I know if I have rats or mice?
Look at the size of the droppings, listen for sounds, and check for damage. Rats are larger and leave bigger messes.

What’s more dangerous — rats or mice?
Both carry disease, but rats are stronger chewers and more destructive.

Can rats and mice live in the same house?
Not usually. Rats tend to dominate and may kill mice in shared areas.

Should I call a professional?
Yes. DIY traps may catch a few, but you need an expert to eliminate the whole infestation and block reentry.

How fast do they reproduce?
Very quickly. A single pair of mice can turn into over 100 in just a few months.

Is your treatment safe for kids and pets?
Yes. We use methods that are safe for families and take every precaution to protect your home.

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