A scientific classification group (subclass or order) that includes all rays, skates, and related flat-bodied fishes.
From Greek 'batis' (ray) with the plural scientific suffix '-ei.' This formal taxonomic name groups together all ray-like fishes for scientific study.
Scientists discovered that rays and skates are actually closer cousins to sharks than they are to regular fish—they all share the same skeleton made of cartilage instead of bone, making them an ancient lineage that's barely changed for millions of years.
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