Which of the following pairs of animals have almost similar maximum life span ?

Options

A. Ant queen and squirrel
B. Toad and house mouse
C. Bull frog and house rat
D. Carp and guineapig

Answer

To determine which pair of animals has almost similar maximum lifespans, we will analyze each of the provided options step by step.

### Step-by-Step Solution:

1. **Understanding Lifespan**:
- Lifespan refers to the duration from the birth of an organism to its natural death. It is important to note that lifespan does not necessarily correlate with the size of the animal.

2. **Evaluating the Options**:
- **Option 1: Ant Queen and Squirrel**:
- The maximum lifespan of an ant queen is approximately 30 years.
- The average maximum lifespan of a squirrel is about 24 years.
- **Comparison**: These two lifespans are relatively close.

- **Option 2: Toad and House Mouse**:
- The average maximum lifespan of a toad is around 15 years.
- The lifespan of a house mouse ranges from 5 to 7 years.
- **Comparison**: These lifespans are quite different.

- **Option 3: Bullfrog and House Rat**:
- The average lifespan of a bullfrog is between 7 to 9 years, with some individuals living up to 16 years.
- The maximum lifespan of a house rat is about 2 years.
- **Comparison**: These lifespans are significantly different.

- **Option 4: Carp and Guinea Pig**:
- The lifespan of a carp is approximately 20 years.
- The lifespan of a guinea pig ranges from 4 to 8 years.
- **Comparison**: These lifespans are also quite different.

3. **Conclusion**:
- After evaluating all the options, the pair that has almost similar maximum lifespans is **Ant Queen and Squirrel**, with lifespans of 30 years and 24 years respectively.

### Final Answer:
The correct option is **Ant Queen and Squirrel**.

---