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Naracoorte caves fossils. are they extinict or evolved?
Both! The fossils within limestone holding caves are of long-extinct animals, but they had still evolved to the species preserved as fossils.
Preserved remains or traces of living things?
Fossils are preserved remains or traces of living things that provide evidence of past life on Earth. These can include bones, teeth, shells, tracks, and imprints of organisms from millions of years ago. Studying fossils helps scientists understand the history of life and how species have evolved over time.
Is it possible for a species to exist and yet never be preserved as a fossil?
Yes, fossilisation is a rare process especially on land. There will have been many species not preserved as fossils but it would be impossible to prove as there are no remains. It is also possible that many species were preserved in rocks but, due to tectonic processes, they were obliterated as the rocks were metamorphosed.
Fossils preserved in ice or snow?
Fossils preserved in ice or snow are well-preserved due to the cold temperatures that slow down decay processes. The frozen environment can prevent decomposition and protect the fossils from scavengers and other forms of damage, providing valuable insights into ancient ecosystems and species. Scientists can analyze these fossils to learn about the environment, climate, and biodiversity of that time period.
What has happened to the majority of species whose fossils are found in rock?
The majority of species whose fossils are found in rocks are extinct. These species lived in the past but no longer exist today. Fossilization occurs when the remains of organisms are preserved in sedimentary rock over millions of years.
What is the estimated percent of bacterial species for which you know appropriate culture conditions?
Less than one percent.
What are asphalt fossils?
Asphalt fossils are prehistoric organisms that have been preserved in asphalt or tar deposits. These fossils can provide valuable information about ancient ecosystems and species. The natural properties of asphalt can create unique conditions for preservation, including exceptional detail of soft tissues.
What are mosasaur fossils?
Mosasaur fossils are the remains of large, extinct marine reptiles called mosasaurs that lived during the Late Cretaceous period. These fossils include teeth, bones, and sometimes even preserved soft tissues, providing valuable information about the biology and evolution of these creatures. Some notable mosasaur species include Mosasaurus and Tylosaurus.
If species didn't change what type of fossils would we see?
If there was no change in species over time, then all fossils of that species would be identical.
How do fossils that form in different rock layers provide evidence of evolution?
Fossils' existence confirms that species are not fixed but can evolve into other species over time
How do fossils show changes in related species?
Fossils are used to show changes because they are permanent. These fossils are also old and show evolutionary changes in species alive today.
Did they find dinosaurs in china?
Many species of dinosaur have been found in China. They are especially famous for well preserved fossils of small theropods that include the feathers. Three such dinosaurs that were found were Anchiornis, Microraptor, and Confuciusornis.
