Which of these is an extinct species?

Options

A. Snow Leopard
B. Bengal Tiger
C. The Bonobo
D. Dodo Bird

Answer

To determine which of the provided options is an extinct species, we can follow these steps:

### Step 1: Understand the Definition of Extinct Species
An extinct species is one that no longer exists anywhere on Earth. This means that there are no living individuals of that species left.

### Step 2: Evaluate the Options
We need to look at each of the options provided and check their conservation status according to the IUCN (International Union for Conservation of Nature) categories.

1. **Snow Leopard**: This species is classified as "Vulnerable." This means that while their population is declining, they are not yet extinct.

2. **Bengal Tiger**: The Bengal tiger is classified as "Endangered." This indicates that their numbers have significantly decreased, but they are still present in the wild.

3. **Bonobo**: Bonobos are also classified as "Endangered," which means they are at risk of extinction but are not extinct yet.

4. **Dodo Bird**: The Dodo bird is a well-known extinct species. It was declared extinct in 1681 due to habitat loss and other factors.

### Step 3: Identify the Extinct Species
From the evaluation, the only species that is classified as extinct is the Dodo bird. The other options (Snow Leopard, Bengal Tiger, and Bonobo) are still present in some form, although they are at risk.

### Conclusion
The extinct species among the options is the **Dodo bird**.

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