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Back from the brink of extinction

A study found that the red-headed wood pigeon's unique genetic history, shaped by centuries of gradual inbreeding, enabled its population to survive and rebound dramatically. The team's analysis revealed lower levels of highly deleterious mutations in the endangered species compared to the more widespread Japanese wood pigeon.

SourceKyoto University·JournalCommunications Biology·TypeObservational study·DateAug 13, 2025

New study finds recovery is still possible for critically endangered Hawaiian honeycreeper with urgent intervention

A new genomic study offers a unique lens for understanding the extinction crisis in Hawai'i, revealing that there is still time to save the critically endangered honeycreeper 'akeke'e. With only 17 species of iconic honeycreepers remaining, efforts to control mosquito populations and conservation breeding programs are underway.

SourceSan Diego Zoo Wildlife Alliance·JournalCurrent Biology·DateMay 29, 2025

Inbreeding contributes to decline of endangered killer whales

Research found that inbreeding is a major factor contributing to the decline of the endangered Southern Resident killer whale population. The study, published in Nature Ecology and Evolution, indicates that inbred individuals have lower survival rates and birth rates compared to those with lower levels of inbreeding.

SourceNOAA Fisheries West Coast Region·JournalNature Ecology & Evolution·TypeData/statistical analysis·DateMar 20, 2023

Researchers take first look at the genetic dynamics of inbreeding depression

Researchers found that a significant amount of inbreeding depression is due to key genes affecting other genes, particularly those involved in metabolism and stress. The study also identified distinct gene expression changes across different chromosome regions, suggesting a complex interplay between genetic mechanisms.