Discovery of Lobefins is considered very significant by evolutionary biologists. Explain.

Explanation

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

1. **Introduction to Lobe-finned Fishes:**
Lobe-finned fishes, also known as sarcopterygians, are a group of fish characterized by their fleshy, lobed fins, which are distinct from the more common ray-finned fishes.

2. **Significance in Evolution:**
The discovery of lobe-finned fishes is significant because they are believed to be the ancestors of tetrapods, the first vertebrates to adapt to life on land. This connection is crucial for understanding the evolution of terrestrial vertebrates.

...