Final answer:
Fossils, including footprints, bones, and fossilized nests, provide solid evidence of dinosaurs' existence. New evidence, such as DNA analysis, is continuously emerging in the field of paleontology.
Step-by-step explanation:
Fossils provide solid evidence that organisms from the past are not the same as those found today, and fossils show a progression of evolution. Scientists determine the age of fossils and categorize them from all over the world to determine when the organisms lived relative to each other. The resulting fossil record tells the story of the past and shows the evolution of form over millions of years.
There are several types of fossils that provide evidence of dinosaurs' existence:
- Fossils: footprints: Dinosaur footprints provide evidence that dinosaurs existed and give clues about their size and behavior.
- Fossils: bones: Dinosaur bones are another type of fossil that provide evidence of dinosaurs' existence. These bones can be studied to understand dinosaur anatomy and how they lived.
- Fossilized nests: Fossilized nests containing dinosaur eggs have been found, which indicate that dinosaurs reproduced by laying eggs.
New evidence is continuously emerging in the field of paleontology, such as DNA analysis of ancient fossils. While DNA analysis is not yet widely used for dinosaurs due to the age of the fossils, it has been successfully used for other extinct species such as mammoths. As technology advances, it is possible that new evidence and insights into dinosaurs' existence may arise.