✉news ScienceBiology first seen 5 h ago, last 1 h ago, peak #18
Cuckoo Genetics Show Host Habits Alone Don't Split Species
Original: Cuckoo Genes Reveal Host Habits Alone Cannot Divide a Wandering Species
New genetic research on cuckoos indicates that differences in host preferences are not enough on their own to divide the wide-ranging birds into separate species. The findings suggest that despite specialised egg-laying habits targeting different host birds, gene flow across populations keeps the wandering species genetically unified, complicating how scientists classify parasitic cuckoo lineages.
Why now: Fresh research challenges the assumption that host specialisation drives speciation in brood-parasitic birds.
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Evidence
- Cuckoo Genes Reveal Host Habits Alone Cannot Divide a Wandering Species · bioengineer.org
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