First Sentence:
There are approximately 42,000 species of vertebrates (animals with backbones) in the world today.
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Key Phrases - Statistically Improbable Phrases (SIPs):
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first posterior row, mature males range, northwestern species, adpressed limbs, vent lobes, smooth dorsal scales, posterior labium, parasphenoid teeth, two rows anterior, dorsal ground color, western spotted frog, dorsal scale rows, labial teeth, upper labials, dorsolateral folds, keeled dorsal scales, frogs measure, clouded salamander, medial gap, clutch frequency, northern alligator lizard, costal grooves, glandular ridge, southern alligator lizard, northwestern salamander
Key Phrases - Capitalized Phrases (CAPs):
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Pacific Northwest, British Columbia, United States, North America, Willamette Valley, Tiger Salamanders, Oregon Cascades, Pacific Giant Salamander, Cascade Mountains, Painted Turtles, Gopher Snakes, Short-horned Lizard, Del Norte Salamander, Desert Horned Lizard, Oregon Slender Salamander, Tailed Frog, Vancouver Island, Great Basin Spadefoots, Cope's Giant Salamander, Dunn's Salamander, Green Frogs, Longnose Leopard Lizard, Northern Alligator Lizard, Southern Alligator Lizard, Wood Frogs
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