"what are two main anatomical characteristics of cancer"

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

What is the problem in this article? what solution does the article propose?

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?