The family classification for screamer birds, a group of large South American waterfowl with spurred wings.
Scientific Latin name derived from 'anhima' with the family-level suffix '-idae.' This naming convention was established by ornithologists in the 18th-19th centuries for taxonomic organization.
Anhimidae are so weird that for a long time scientists couldn't figure out if they were ducks, geese, or something completely different—it turns out they're in their own special family that split off millions of years ago!
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