The first mammals which were originated on the earth similar to:

Options

A. Dogs
B. Horses
C. Shrews
D. Monkeys

Answer

To solve the question regarding the first mammals that originated on Earth, we can break down the information provided in the video transcript into clear steps:

### Step-by-Step Solution:

1. **Understanding the Context**: The question asks about the first mammals that originated on Earth. We need to identify which organisms are considered the earliest mammals.

2. **Identifying the Timeframe**: According to the transcript, the first mammals appeared around 210 million years ago, during the time when dinosaurs were prevalent.

3. **Recognizing Mammal-like Organisms**: The transcript mentions that the first mammal-like organisms that evolved were similar to shrews. This indicates that shrews are considered to be among the earliest representatives of mammals.

4. **Comparing Other Options**: The transcript also mentions other animals like dogs, horses, and monkeys, which evolved after the shrew. This helps us eliminate these options as they are not the first mammals.

5. **Conclusion**: Based on the information provided, the correct answer to the question is that the first mammals that originated on Earth were similar to shrews.

### Final Answer:
The first mammals which originated on Earth were similar to **shrews**.

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