All of the following are the mammals wholly living in water except

Options

A. Penguins
B. Dolphins
C. Seals
D. Sea cows

Answer

To solve the question "All of the following are the mammals wholly living in water except," we need to analyze the options provided and determine which one does not belong to the category of mammals that live entirely in water.

**Step 1: Identify the options provided.**
The options given are:
- A) Penguins
- B) Dolphins
- C) Seals
- D) Sea cows

**Step 2: Classify each option.**
We need to classify each of these animals to see if they are mammals and if they live wholly in water.

- **A) Penguins**: Penguins are birds, not mammals. They are flightless aquatic birds that can swim but do not live wholly in water.

- **B) Dolphins**: Dolphins are mammals that live entirely in water. They are fully aquatic and cannot survive on land.

- **C) Seals**: Seals are also mammals that primarily live in water. While they can come onto land, they are considered aquatic mammals.

- **D) Sea cows**: Sea cows, or manatees, are mammals that live entirely in water. They are herbivorous and are fully aquatic.

**Step 3: Determine the exception.**
From the classification:
- Penguins are not mammals and do not live wholly in water.
- Dolphins, seals, and sea cows are all mammals that live in water.

Thus, the exception to the question is **A) Penguins**.

**Final Answer:**
The correct answer is **A) Penguins**, as they are not mammals and do not live wholly in water.

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