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10 maj 2017 · Porpoises are a unique type of cetacean that are in the family Phocoenidae. Porpoises are generally small animals (no species grows longer than about 8 feet) with robust bodies, blunt snouts and spade-shaped teeth.
12 wrz 2023 · List of dinosaurs, with facts & information. Dinosaur names with pictures, a complete online reference. Learn about famous & lesser-known Mesozoic species.
Tyrannosaurus rex (T. rex) dinosaurs on display at the Carnegie Museum of Natural History in Pittsburgh, PA. Reaching lengths of over 40 feet, the Tyrant Lizard King is the last and the largest of the Tyrannosaurs.
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16 paź 2024 · We explore the different porpoise species and look at their habitat, behaviors and other characteristics. What are porpoises? The term porpoise is used to refer to the smallest types of cetaceans, a group which belong to the family Phocoenidae, scinetically known as phoecoenids.
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Porpoises are distinguished from dolphins by their flattened, spade-shaped teeth distinct from the conical teeth of dolphins, and lack of a pronounced beak. Porpoises use echolocation as their primary sensory system. Some species are well adapted for diving to great depths.