The Last Conformist
Irresistibly Attractive
Ambulocetus:
Sea otter:
I still want classical_hero to tell me what tell-tale terrestrial features Ambulocetus has that the sea otter lacks. I mean, it can't possibly be hard, since we know that the sea otter is aquatic and classical_hero tells us that Ambulocetus was clearly a land animal.
i) The writer takes "backbone" to mean spinal column. As anyone can see from the picture they so thoughtfully provided, Ambulocetus's spinal column simply does not end at the pelvis.
ii) The writer takes "backbone" to refer to the thoracic and lumbar regions of the spinal column. By this definition, the backbone of a modern whale ends at the pelvic region in modern whales, just as among all other mammals - it does not continue to the end of the tail as the writer implies. Incidentally, modern whales have pelvic bones, albeit vestigial.
iii) The writer is using "backbone" in different senses when talking about Ambulocetus and modern whales. This would be pure dishonesty.
So, have I missed something? I'd like not having to conclude that the writer is a lying scumbag ...

Sea otter:

I still want classical_hero to tell me what tell-tale terrestrial features Ambulocetus has that the sea otter lacks. I mean, it can't possibly be hard, since we know that the sea otter is aquatic and classical_hero tells us that Ambulocetus was clearly a land animal.
I can imagine several interpretations of this statement. Unfortunately, they're all rather damning of the writer's intellectual integrety. Let's take stock:c_h's article said:The backbone of the quadrupedal mammal Ambulocetus ends at the pelvis, and powerful rear legs then extend from it. This is typical land mammal anatomy. In whales, however, the backbone goes right down to the tail, and there is no pelvic bone at all.
i) The writer takes "backbone" to mean spinal column. As anyone can see from the picture they so thoughtfully provided, Ambulocetus's spinal column simply does not end at the pelvis.
ii) The writer takes "backbone" to refer to the thoracic and lumbar regions of the spinal column. By this definition, the backbone of a modern whale ends at the pelvic region in modern whales, just as among all other mammals - it does not continue to the end of the tail as the writer implies. Incidentally, modern whales have pelvic bones, albeit vestigial.
iii) The writer is using "backbone" in different senses when talking about Ambulocetus and modern whales. This would be pure dishonesty.
So, have I missed something? I'd like not having to conclude that the writer is a lying scumbag ...