- dependence of beings with the environment, which is changeable;
- camouflage;
- mimicry;
- fetal development;
Comparative embryology;
- homologous organs (homologies);
- analogous organs (evolutionary convergence);
- vestigial organs;
- genetic evidence (astounding genetic proximity);
- biochemical evidence (20 amino acids, carbon life)
- pseudogene
- retroviral insertions (endogenous retroviruses);
- domestic animals;
- distance between species (species may be near or distant)
- viable breeding between the nearest species;
- nearby species that cross and still breed fertile offspring;
- ring species;
- chronological order of fossil records (always from the oldest species to the most recent ones);
