As a testament to the power of artificial selection, rabbits like the Flemish giant can weigh up to 20kg (about 50 pounds).
|Flemish Giant Rabbit|
Beach mice are subspecies of oldfield mouse (Peromyscus polionotus) that have evolved pale fur to match the pale sand they live on. Hopi Hoekstra and her lab have worked out exactly which mutations in which genes are responsible for this adaptive colouration.
|Choctawhatchee beach mouse (Peromyscus polionotus allophrys)|