edentata notes only!!!. edentata this order is also known as order xenarthra. edentata means without...
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Edentata
Notes only!!!
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Edentata
• This order is also known as Order Xenarthra. • Edentata means “without teeth.”• Members of this order include armadillos, sloths, and
anteaters.
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Armadillo• Armadillos are very timid animals. • They can jump over 3 feet straight up in the air. • They are often run over by cars.
• Armadillos have a carapace, much like turtles. • It covers most of the body. • It is made up of bony plates covered with epidermal
scales.• This covering varies from a complete protective covering
when animals roll into a ball, to a more loose-fitting one that does not completely cover.
• The carapace is attached to the skeleton by muscles and ligaments.
• It is not directly attached to the skeleton.
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Armadillo
• Armadillos have very sparse hair. • They do have teeth, but have no incisors or canines. • Their teeth are shaped like cylinders and they do not have
any roots.• Most armadillos are terrestrial and are very well-equipped
for digging. • They eat insects and insect larvae. • Occasionally, they will eat plants, eggs, or fruit.
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Sloth
• There are 2 families of sloth: 3-toed and 2-toed. Characteristics are very similar for both families.
• Sloths are arboreal. • This means they are tree-dwellers and have great
difficulty moving on the ground. • They often move upside-down on the underside of
branches. • They are nocturnal and sleep about 15 hours a day.
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Sloth
• Sloths are very long-limbed.• Their forelimbs are longer than their hindlimbs. • Sloths are also syndactyl, which means that their toes are
fused together. • Their cervical vertebrae vary in number, from 6-9. • Sloths do have teeth, but no incisors or canines. • The teeth are shaped like cylinders, have no roots, and
are homodontic. • Sloths have long, coarse hair on which blue-green algae
grows.
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Sloth
• They are herbivores and will eat buds, flowers, and fruit. • Sloths have a very, very slow metabolism and very poor
temperature regulation. • The harpy eagle and the jaguar are the main predators of
sloths. • The sloth’s main defense is to nip and claw at its attacker. • Being camouflaged is also a good defense.
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Anteater• Anteaters have a very long, tubular rostrum, or snout. • Their mouth is very small. • They have a long, sticky tongue that moves very quickly. • This tongue will flicke in and out about 160 times per
minute. • They do not have teeth. • Anteaters are insectivores. • They crush insects with their thickened stomach. • They have large front claws for opening up termite
mounds, tearing up rotting logs, etc. • These long claws curl under while the anteater walks on its
knuckles. • Anteaters are solitary.• They have terrible eyesight but a great sense of smell.
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Armadillo Scientific Name
• Dasypus novemcinctus (9-Banded Armadillo)
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Sloth Scientific Name
• Bradypus variegatus (Brown-throated 3-toed Sloth)
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Anteater Scientific Name
• Myrmecophaga tridactyla (Giant Anteater)