The production of semen relative to testes size varies greatly across different land animals, and while it is challenging to provide exact rankings due to variability in studies and measurements, here are three notable examples of land mammals that are known for their relatively large semen production relative to their testes size:
### 1. **Elephant**
- **Testes Dimensions & Weight**:
- Average weight: ~4.5 kg (9.9 lbs) each
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