Evidences of evolution. 1.Paleontology or the Fossil Record. The surface layers have more complex land animals The middle layer early vertebrates and amphibians The bottom layer has simple aquatic organisms. The fossils are formed in sedimentary rock.
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have more complex
early vertebrates and
simple aquatic organisms
Organisms are buried as each new layer of sediment covers the organisms.
The hard parts make a mold in the sediments.
Minerals deposit in the molds and make a perfect cast or copy of the organism.
Some organisms leave traces of their presence that can also be fossilized, such as foot prints, excrement, or nests
(on top of the Rockies)
Sabre tooth Tiger
The longer our embryos are the same the more closely we are related evolutionarily
This is an evolutionary tree of the
The more differences there are in the
Amino acid sequence the less they are
In the Galapagos
and ancestor finch
blew in on a storm
The finch then adapted
to its new environment.
New species arose.
This is called
As continents moved apart climate changes would also cause adaptive radiation.
Similar fossils and living species are found in areas once closely connected