Based on fossil evidence, scientists concluded that whales evolved from hoofed mammalian ancestors that lived on land, New evidence confirms this and suggests that among the hoofed
mammals, the hippopotamus is the closest living relative of whales. Which of the following was
the most likely source of this new evidence? (S7L5c) 1 pt.
A. Comparisons of lifespans
B. Comparisons of gene sequences
C. Mapping of geographic distributions
D. Calculation of population birth rates