Humans' outer ears may have evolved from the gills of prehistoric ... They inserted enhancers associated with zebrafish gills into mouse genomes and detected activity in the mice's outer ears.

Scientists have traced the evolutionary origin of humans' outer ears to the gills of ancient fish through a series of gene-editing experiments.

The Human Genome Project estimated there could be ... for investigating the genetics of diseases and testing new drugs. Mouse phenotyping studies analyse biological properties, such as the ...