The phylogenetic trees made in this research (one with the whole mitochondrial genome sequence and one with the cytochrome b sequence) differ from each other in all the three groups of animals (Bears, cats and primates). These trees differ in the amount of genetic information and in the number of animals used per species. The hypervariable cytochrome b has small differences in the sequence between animals, also when they are closely related. In combination with multiple animals per species, is this tree more reliable than the tree with the whole mitochondrial genome sequence. Therefore, to compare with other research, the phylogenetic tree based on the cytochrome b sequence with all three groups was chosen in the discussion. These phylogenetic trees of the three groups of animals are compared to phylogenetic trees of other researches.
The conclusion is that there are some comparisons between the phylogenetic trees within the separated groups of animals. Moreover there are differences between the trees. Therefore, the question still remains which orientation in the phylogenetic tree is the right one.
There is no intention here to question the methods of making a phylogenetic tree or to claim a certain orientation as the right one. The aforementioned discussion merely illustrates the importance of reliable molecular tools. To address this issue, a comprehensive database of molecular tools seems more than a luxury. Starting with three big mammals, a step was made in the direction of a systematic, online database. A website was made and remains available for scholars, academics, consultants, breeding specialists and so forth. The genome sequence, mitochondrial genome sequence, the SNPs and the microsatellite information are reliable tools to help future research. The database presented contains all of these characteristics which makes it a very useful tool for future research. Furthermore, there is a lot more research about phylogenetic trees than was discussed. In the database all this research is summarized in the literature section in the sections about the different species. The database is not only useful for research between species, but will also be useful for researches about the family structures within a population of one species. Future research may well aim to expand the database in order to establish a strong foundation of molecular tools. Results from this future research, for example, can aim to help preventing inbreeding in zoo populations.