"If you have a specific topic from any of those you 'd like to discuss I 'll be glad to talk it over with you ."
"Sure . I would like to discuss the first one . It shows obvious similarities that are almost certainly not coincidencial . In part I , the fish and salamander look similar to everything else ( note the curvature and the small flaps under the head ) . However , in parts II and III , the fish and salamander begin to look different . You can see where this is leading , right ? It is leading to the assertion that these organisms are related , but that the fish and reptiles are not as closely related to the mammals as the mammals are related to each other . This assertion is also backed up by the fossil record , but that is n't as visible as this picture ."
"If you have a specific topic from any of those you 'd like to discuss I 'll be glad to talk it over with you ."
"Sure . I would like to discuss the first one"