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North of the Missouri River, the state is primarily rolling hills of the Great Plains, whereas south of the Missouri River, the state is dominated by the oak-hickory Central U.S. hardwood forest. Some of the native species found in Missouri are included below. [1] [2]
Amphibian: American bullfrog Lithobates catesbeiana: 2005 [1] [2] Animal: Missouri mule: 1995 [1] [3] Aquatic animal: Paddlefish ... List of Missouri state symbols.
This is a list of official U.S. state, federal district, and territory amphibians. State amphibians are designated by tradition or the respective state legislatures. [1] As of 2023, only 28 states and one territory have a state amphibian.
The amphibian bladder is usually highly distensible and among some land-dwelling species of frogs and salamanders may account for between 20% and 50% of their total body weight. [82] Urine flows from the kidneys through the ureters into the bladder and is periodically released from the bladder to the cloaca.
Most of these frogs are caught in the wild, but some are raised in captivity. The United States is a net importer of frog legs. [68] The American bullfrog is used as a specimen for dissection in many biology and anatomy classes in schools across the world. [69] It is the state amphibian of Missouri, Ohio, and Oklahoma. [70]
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A walk through Graham Cave State Park is like a walk through ancient history. Artifacts recovered in the cave revealed that ancient people lived there between 8,000 and 10,000 years ago.
In amphibians there are salvary glands on the tongue, which in frogs produce what is called a two-phase viscoelastic fluid. When exposed to pressure, like when the tongue is wrapping around a prey, it becomes runny and covers the prey's body. As the pressure drops, it returns to a thick and elastic state, which gives the tongue an extra grip. [75]