Question

fossil evidence provides a record of the history of life on earth. fossils were discovered in canada in 2004 of a large aquatic animal with scales and fin rays that also had a skull, neck, ribs, and appendages similar to animals that walk. what interpretation was made of this new fossil discovery?
it represents a common ancestor to larger aquatic animals.
it represents the first land animal.
it represents a transition from water animals to land animals.
it represents a transition from deep - sea animals to shallow swimming animals.

Explanation:

The fossil has aquatic features (scales, fin rays) and land - animal - like features (skull, neck, ribs, appendages for walking). Option A is incorrect as it's about a common ancestor to larger aquatic animals, but the fossil shows a move towards land. Option C is wrong as it's not the first land animal. Option D is incorrect as it's about deep - sea to shallow - water, not what the fossil shows. Option B shows a transition from water (aquatic features) to land (walking - like appendages etc.) animals, which matches the fossil's features.

Answer:

B. It represents a transition from water animals to land animals.