The frilled shark is one of the oldest and strangest predators still alive, surviving in deep ocean waters with a body plan that has barely changed for tens of millions of years . Its eel-like body, ...
The post Pitchfork Teeth and Seven Gills: Inside Earth's Oldest Shark Order appeared first on A-Z Animals. Most shark species have only five gills, but one primitive order has six, and some even seven ...
Most shark species have only five gills, but one primitive order has six, and some even seven. This anatomical difference is one of many that set them apart from others in their genus. The literal ...
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