Who discovered regeneration in Hydra ?

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Regeneration**: Regeneration is a form of asexual reproduction where an organism can regrow lost parts or develop from fragments of its body.

2. **Example of Regeneration**: Hydra is a well-known example of an organism that exhibits regeneration. When a Hydra is fragmented, each piece can develop into a new individual.

3. **Historical Discovery**: The question specifically asks about the discovery of regeneration in Hydra.

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