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The diverse geography of Texas, the second-largest state, hosts a variety of habitats for amphibians, including swamps and the Piney Woods in the east, rocky hills and limestone karst in the central Hill Country of the Edwards Plateau, desert in the south and west, mountains in the far west (the Trans-Pecos), and grassland prairie in the north ...
Many temnospondyls are much larger than living amphibians, and superficially resemble crocodiles, which has led many taxa to be named with the suffix -suchus.The largest taxa, which were predominantly the Mesozoic stereospondyls, had skulls exceeding one meter in length, and the entire animal would have been several meters in length (for reference, the largest living amphibian, Andrias, is ...
Amphibians have soft bodies with thin skins, and lack claws, defensive armour, or spines. Nevertheless, they have evolved various defence mechanisms to keep themselves alive. The first line of defence in salamanders and frogs is the mucous secretion that they produce. This keeps their skin moist and makes them slippery and difficult to grip.
Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
The Texas indigo snake is listed as a threatened species by the state of Texas. [5] Its primary threat is from habitat loss due to human development. Each snake requires a large home range to forage, and urban sprawl is shrinking its usable habitat. Roads bisect its territory, and many snakes each year are run over by cars.
Scientists found that members of the new species are smaller than their offshore common bottlenose counterparts, eat different fish and have spines adapted to navigating the tight spaces of rivers ...
Crataegus texana is a perennial tree [4] that grows to be about 25 feet tall [5] and has long, sharp thorns. It has shiny, dark green leaves that can grow to be between 0.75 and 1.5 inches long. Its simple leaves [4] have toothed leaf margins with a parallel veination. [2] Their leaves are ovate in shape, acute at the apex, and cuneate at the ...
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.