Credit: Images courtesy of Meg Benhase (https://mostlyphotos.wordpress.com), editing and photomontage by Aurélie Kapusta.
A new look at the genomes of a range of animals, from hummingbirds to bats to elephants, suggests that many vertebrate genomes have experienced large fluctuations in size over evolutionary time. The research was led by scientists at the University of Utah School of Medicine and published in the journal, the Proceedings of the National Academies of Sciences.