A taxonomic group or superfamily containing whales and whale-like marine mammals.
From Latin 'balaena' (whale) plus Greek '-oidea' (superfamily suffix). This higher-level taxonomic rank groups related whale families together.
Balaenoidea represents how biologists organize the whale family tree—it's like saying 'all the whale-like animals' rather than focusing on one specific type, helping us understand evolutionary relationships.
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