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Collecting jointly after the farm's harvest, a pig, cow, sheep, donkey, goose, and horse plan to consume up all the apples and corn until eventually the farmer catches them and shoos every body away. by way of the writer of Itchy, Itchy bird Pox.
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Extra info for Oink! Moo! How Do You Do?: A Book of Animal Sounds
Functional teeth are used daily in capturing and processing prey. They sit at the jaw margins and are exposed when a shark opens its mouth to bite something. Replacement teeth lie in rows farther back and deeper in the jaws, hardening as they develop and ready to move forward in conveyor-belt fashion as functional teeth are lost during feeding or are shed as a natural process. Shedding occurs in part because the teeth are embedded in a shark’s gums rather than anchored to the jawbones as in mammals and bony fishes.
If a shark’s preferred prey is likely to be too large to swallow whole, then holding and cutting equipment is needed. The easily identified notched and serrated (saw-edged) teeth of a Tiger Shark accomplish this, and Tiger Sharks have one of the most varied diets of any large shark species. Tiger Shark teeth are often described as cockscomb-shaped because of their distinct uneven, notched shape and serrated edges, similar to the comb on the head of a rooster. A Tiger Shark’s bite may be more effective because the teeth in each side of both upper and lower jaws are mirror images of each other.
Fossil teeth that undoubtedly belonged to sharks have been found in geological deposits that date to the early Devonian period, about 418 million years ago. An actual sharklike fossil with the revealing name of Doliodus problematicus is thought to be 409 million years old. ) Some sharklike scales from the late Ordovician (455 million years old) have been found, but scientists are hesitant to proclaim that they came from a shark. Holocephalans arose somewhat later, the oldest fossils dating back to at least the late Devonian, about 375 million years ago.