Fossils are the remains of plants or animals from many years ago. Theyre found in rocks and they provide evidence of how organisms have changed over time.
Fossils may be formed in various ways:
- from the hard parts of animals that don't decay easily
- from parts of organisms that haven't decayed bc one or more of the conditions needed for decay are absent
- when parts of the organisms are replaced by other materials as they decay
- as preserved traces of organisms
Fossils are quite rare bc many early forms of life were soft-bodied & didn't leave traces behind, also bc fossiles have been destroyed by geological activity
Comments
No comments have yet been made