Genes Seem to Link Unlikely Relatives

Similarities in DNA, the genetic material that’s passed along from an animal to its offspring, can be a strong indicator of kinship. After all, even if you didn’t get your father’s nose, you got a hefty dose of his DNA.

Using that line of reasoning, an international team of scientists contends that markers in the genes of three proteins suggest a single African ancestor for animals as diverse as elephants and aardvarks.