When Fins Became Limbs Analysis

The picture is showing the natures' magazine with a fossilized fish and a tagline that said "When Fins Became Limbs" on its cover. Assuming the content must be the relationship between the swimming fish and the early land-living animals. The magazine cover is Tiktaalik, and it is intermediate between fish and the primitive land-living animal (tetrapod). And the picture connection to the relevant chapter is that, the first chapter talks about how paleontologists try to find the fossil that shows the transition between the fish and the four limbs tetrapod, which is Tiktaalik. Like a fish, It has scales on its back and fins; but like a land-living animals, it has a flat head and neck. The author also points out that the fossil Tiktaalik, unlike any other fish, there is a set of bones that attach Tiktaalik head to its shoulder, which makes it able bend its head independently of the rest of the body. The Tiktaalik can be a path to knowledge about how we human became human.
Part B
Dispute: Most living organisms fossilize after death, so fossils in exemplary condition are easily found all over the world. …show more content…
In order to fossilize, the living organisms have to rest in the right conditions. Fossilization can only occur when the dead animals were buried. Also some animals that got decomposed and eaten by other scavengers and predators obviously won't be able to preserve as fossils. Like the author has said, the animals existed back then had died and buried for such a long time, their bodies are rarely preserved. Only a very small fraction is preserved as fossils, and even smaller fraction are