Answer: From what i can understand, you asked to order the fish species from earliest to most recent based on their developmental changes. Let's analyze the characteristics of each image to determine their order.
Image 1 has flipper-shaped legs and a small tail. This suggests that it represents a fish species that has started to develop limbs for movement on land.
Image 2 does not have legs but has three fins on the bottom and two on the top with a forked tail. This indicates that it represents a fish species that has lost its legs but still retains fins for swimming.
Image 3 has two small fins on the bottom and a tail. This suggests that it represents a fish species that has lost some of its fins but still retains a tail for swimming.
Image 4 has legs with toes and a long smooth tail. This implies that it represents a fish species that has fully developed limbs with toes for movement on land.
Based on these observations, we can order the fish species from earliest to most recent as follows:
1. Image 2 (fish species without legs but with fins)
2. Image 3 (fish species with reduced fins)
3. Image 1 (fish species with flipper-shaped legs)
4. Image 4 (fish species with fully developed legs)
It is important to note that this is just one possible ordering based on the information given. Depending on the specific characteristics and developmental changes of each fish species, there may be alternative orderings.