How do nektonic and benthonic animals differ from each other?

Explanation

### Step-by-Step Solution

1. **Definition of Nektonic Animals**:
- Nektonic animals are organisms that swim actively in the water. They are capable of moving independently against currents. Examples include fish, squid, and marine mammals.

2. **Definition of Benthonic Animals**:
- Benthonic animals, or benthos, are organisms that live on or near the bottom of water bodies. They are typically stationary or move very little. Examples include crabs, sea stars, and various types of worms.

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