Despite numerous specimens documenting cetacean evolution,the relationship between hippopotamuses and these ancestors remains poorly substantiated by the fossil record and the ancestor of the modern day hippopotamus has not been identified.
This allows us to integrate what we see from the fossil record with data on climate change and changes in flora and fauna that we see around us today.”.
Rolland and his colleagues looked at genetic data and fossil records to reconstruct where animals flourished over the last 270 million years and the temperature that enabled them to live.
Eldredge and Gould proposed that the degree of gradualism commonly attributed toCharles Darwin is virtually nonexistent in the fossil record, and that stasis dominates the history of most fossil species.
Some astronomers outside the field push the idea that periodic asteroid strikes caused each of the planet's other four mass extinctions,but this hypothesis has virtually no support in the fossil record.
Until 530 million years ago, multicellular animals consisted primarily of simple, soft-bodied forms,most of which have been identified from the fossil record as cnidarians and sponges.
Prof Mock said:"The fossil record also shows a relationship between sea temperature and the average cell size of diatoms, so we can assume phytoplankton cell sizes will continue to respond to the changing global temperatures.
In order to understand the whole story of evolution, we need not only the knowledge of biology(physiology, molecular biology, metabolism, morphology, the fossil records…) or not only the knowledge of physics or so of course.
A recent study derived from fossil records, the megalodon has been extinct about 200-26 million years ago, but those who believe in the possibility of inhabiting even in themodern era Is not it there?
By this I mean that the classic cases of Darwinian change in the fossil record, such as the evolution of the horse in North America, have had to be modified or discared as a result of more detailed information.
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