Friday, July 03, 2020
Birds rarely change their chirpy little tunes, and when they do, it's typically limited to the local environment, where slight song variants basically become regional dialects. New research published today in Current Biology describes an extraordinary exception to this rule, in which a novel song sung by white-throated sparrows is spreading across Canada at an unprecedented rate. What's more, the new song appears to be replacing the pre-existing melody, which dates as far back as the 1960s.
Admin's note: Participants in this discussion must follow the site's moderation policy. Profanity will be filtered. Abusive conduct is not allowed.