Genetic variation, which is generated by mutation, recombination and gene flow, can reduce
the mean fitness of a population, both now and in the future. This 'genetic load'has been …

Deleterious mutations decrease reproductive fitness and are ubiquitous in genomes. Given
that many organisms face ongoing threats of extinction, there is interest in elucidating the …

Abstract The Zoonomia Project is investigating the genomics of shared and specialized traits
in eutherian mammals. Here we provide genome assemblies for 131 species, of which all …

Life on Earth has evolved from initial simplicity to the astounding complexity we experience
today. Bacteria and archaea have largely excelled in metabolic diversification, but …

As of 2022, the International Union for Conservation of Nature (IUCN) Red List estimates
that more than 32% of fungal, plant, and animal species are threatened with extinction. This …

Comparative whole-genome analyses hold great power to illuminate commonalities and
differences in the evolution of related species that share similar ecologies. The mustelid …

Twentieth century industrial whaling pushed several species to the brink of extinction, with
fin whales being the most impacted. However, a small, resident population in the Gulf of …

The genetic consequences of species‐wide declines are rarely quantified because the
timing and extent of the decline varies across the species' range. The sea otter (Enhydra …

Studying repeated adaptation can provide insights into the mechanisms allowing species to
adapt to novel environments. Here, we investigate repeated evolution driven by habitat …

Marine amniotes, a polyphyletic group, provide an excellent opportunity for studying
convergent evolution. Their sense of smell tends to degenerate, but this process has not …