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Six-banded armadillo
The six-banded armadillo (Euphractus sexcinctus), also known as the yellow armadillo, is an armadillo found in South America. The sole extant member of its genus, it was first described by Swedish zoologist Carl Linnaeus in 1758. The six-banded armadillo is typically between 40 and 50 centimeters (16 and 20 in) in head-and-body length, and weighs 3.2 to 6.5 kilograms (7.1 to 14.3 lb). The carapace (hard shell on the back) is pale yellow to reddish brown, marked by scales of equal length, and scantily covered by buff to white bristle-like hairs. The forefeet have five distinct toes, each with moderately developed claws.
Six-banded armadillos are efficient diggers and form burrows to live in and search for prey. The armadillo is alert and primarily solitary. An omnivore, it feeds on insects, ants, carrion, and plant material. Due to their poor eyesight, armadillos rely on their sense of smell to detect prey and predators. Births take place throughout the year; gestation is 60 to 64 days long, after which a litter of one to three is born. Weaning occurs at one month, and juveniles mature by nine months. The six-banded armadillo inhabits savannas, primary and secondary forests, cerrados, shrublands, and deciduous forests. Fairly common, its range spans from Brazil and southern Suriname in the northeast through Bolivia, Paraguay, and Uruguay into northern Argentina in the southeast. The International Union for the Conservation of Nature and Natural Resources (IUCN) classifies it as least concern, and there are no major threats to its survival.
The six-banded armadillo is the sole member of the genus Euphractus and is placed in the family Chlamyphoridae. It was first described by Swedish zoologist Carl Linnaeus as Dasypus sexcinctus in 1758. The genera Chaetophractus (hairy armadillos) and Zaedyus (pichi) have at times been included in Euphractus, though karyotypical, immunological and morphological analyses oppose this. Fossil Euphractus excavated in Lagoa Santa, Minas Gerais (Brazil), Buenos Aires (Argentina), and Tarija (Bolivia) date back to the Pleistocene.
The following five subspecies are recognized:
A 2006 morphological study of the phylogeny of armadillos showed that Chaetophractus, Chlamyphorus, Euphractus and Zaedyus form a monophyletic clade. The cladogram below (based only on the extant species) is based on this study.
However, a mitochondrial DNA investigation has concluded that Chlamyphorinae (fairy armadillos) is the sister group of Tolypeutinae (giant, three-banded and naked-tailed armadillos), with Euphractinae (hairy, six-banded and pichi armadillos) having diverged earlier.
The six-banded armadillo differs from others in the subfamily Euphractinae, which also contains the pichi and hairy armadillos, in having a narrow head and six to seven movable bands on the carapace (the hard shell on the back). Other names for this armadillo are tatu peludo and tatu peba (in Portuguese), and 'yellow armadillo'.
The six-banded armadillo is the largest in Euphractinae, which also contains the pichi and hairy armadillos; in fact, it is the third largest armadillo after the giant armadillo and the greater long-nosed armadillo. This armadillo is typically between 40 and 50 centimeters (16 and 20 in) in head-and-body length, and weighs 3.2 to 6.5 kilograms (7.1 to 14.3 lb). The carapace is pale yellow to reddish brown (though not a dark shade of brown or black), marked by scales of equal length, and scantily covered by buff to white bristle-like hairs – unlike the hairy armadillos, that are covered by dense hairs. The shell narrows to 70 to 80 percent of its original width towards the top of the head, which is covered by plates arranged in a definite pattern. The forefeet have five distinct toes, each with moderately developed claws, of which the third is the longest.
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Six-banded armadillo
The six-banded armadillo (Euphractus sexcinctus), also known as the yellow armadillo, is an armadillo found in South America. The sole extant member of its genus, it was first described by Swedish zoologist Carl Linnaeus in 1758. The six-banded armadillo is typically between 40 and 50 centimeters (16 and 20 in) in head-and-body length, and weighs 3.2 to 6.5 kilograms (7.1 to 14.3 lb). The carapace (hard shell on the back) is pale yellow to reddish brown, marked by scales of equal length, and scantily covered by buff to white bristle-like hairs. The forefeet have five distinct toes, each with moderately developed claws.
Six-banded armadillos are efficient diggers and form burrows to live in and search for prey. The armadillo is alert and primarily solitary. An omnivore, it feeds on insects, ants, carrion, and plant material. Due to their poor eyesight, armadillos rely on their sense of smell to detect prey and predators. Births take place throughout the year; gestation is 60 to 64 days long, after which a litter of one to three is born. Weaning occurs at one month, and juveniles mature by nine months. The six-banded armadillo inhabits savannas, primary and secondary forests, cerrados, shrublands, and deciduous forests. Fairly common, its range spans from Brazil and southern Suriname in the northeast through Bolivia, Paraguay, and Uruguay into northern Argentina in the southeast. The International Union for the Conservation of Nature and Natural Resources (IUCN) classifies it as least concern, and there are no major threats to its survival.
The six-banded armadillo is the sole member of the genus Euphractus and is placed in the family Chlamyphoridae. It was first described by Swedish zoologist Carl Linnaeus as Dasypus sexcinctus in 1758. The genera Chaetophractus (hairy armadillos) and Zaedyus (pichi) have at times been included in Euphractus, though karyotypical, immunological and morphological analyses oppose this. Fossil Euphractus excavated in Lagoa Santa, Minas Gerais (Brazil), Buenos Aires (Argentina), and Tarija (Bolivia) date back to the Pleistocene.
The following five subspecies are recognized:
A 2006 morphological study of the phylogeny of armadillos showed that Chaetophractus, Chlamyphorus, Euphractus and Zaedyus form a monophyletic clade. The cladogram below (based only on the extant species) is based on this study.
However, a mitochondrial DNA investigation has concluded that Chlamyphorinae (fairy armadillos) is the sister group of Tolypeutinae (giant, three-banded and naked-tailed armadillos), with Euphractinae (hairy, six-banded and pichi armadillos) having diverged earlier.
The six-banded armadillo differs from others in the subfamily Euphractinae, which also contains the pichi and hairy armadillos, in having a narrow head and six to seven movable bands on the carapace (the hard shell on the back). Other names for this armadillo are tatu peludo and tatu peba (in Portuguese), and 'yellow armadillo'.
The six-banded armadillo is the largest in Euphractinae, which also contains the pichi and hairy armadillos; in fact, it is the third largest armadillo after the giant armadillo and the greater long-nosed armadillo. This armadillo is typically between 40 and 50 centimeters (16 and 20 in) in head-and-body length, and weighs 3.2 to 6.5 kilograms (7.1 to 14.3 lb). The carapace is pale yellow to reddish brown (though not a dark shade of brown or black), marked by scales of equal length, and scantily covered by buff to white bristle-like hairs – unlike the hairy armadillos, that are covered by dense hairs. The shell narrows to 70 to 80 percent of its original width towards the top of the head, which is covered by plates arranged in a definite pattern. The forefeet have five distinct toes, each with moderately developed claws, of which the third is the longest.