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The Digital Morphology library is a dynamic archive of information on digital morphology and high-resolution X-ray computed tomography of biological specimens. Browse through the site and see spectacular imagery and animations and details on the morphology of many representatives of the Earth's biota. Recent additions or updates to the site include:

Metatherian Mammal, <BR><i>Herpetotherium</i> cf. <i>fugax</i>
Herpetotherium cf. fugax is a metatherian ('marsupial') from the Oligocene of North America. The recent discovery of well preserved specimens in the Early Oligocene White River Formation of Wyoming has allowed a better understanding of its morphology, phylogenetic position, and locomotor adaptations. Learn more about these remarkably complete fossils, recently described by Horovitz and coauthors in Palaeontographica Abteilung.  [more...] 
Echinoneus cyclostomus, Little Burrowing Urchin18-Aug-2008
<i>Echinoneus cyclostomus</i>, Little Burrowing Urchin
The little burrowing urchin, Echinoneus cyclostomus, occurs worldwide throughout the tropics. While it inhabits depths up to 570 m, it is most common in shallow waters. Adult individuals of this species and others in Echinoneidae do not possess a lantern or teeth -- these structures are absorved during maturation. Learn more about the little burrowing urchin by reading this new account by Mr. Louis Zachos of The University of Texas at Austin.  [more...] 
Naked Mole-rat, Heterocephalus glaber04-Aug-2008
Naked Mole-rat, <i>Heterocephalus glaber</i>
The naked mole-rat, a fossorial rodent endemic to the arid regions of eastern Africa, is a remarkable creature. Although it is a mammal, it lacks the ability to regulate its internal body temperature. It is one of only two mammals to exhibit an advanced social structure called eusociality. And it is the longest-lived rodent species, with individuals living as long as 28 years in captivity. These bizarre attributes have garnered much scientific attention for Heterocephalus glaber. Learn more by reading the new DigiMorph account by Nicholas Smith of The University of Texas at Austin.  [more...] 
Gopherus polyphemus, Gopher Tortoise14-Jul-2008
<i>Gopherus polyphemus</i>, Gopher Tortoise
The gopher tortoise is a member of Testudinidae, a large and diverse clade that includes well-known giant species such as the Galápagos and Aldabra tortoises. Gopherus polyphemus occurs in the southeastern United States from South Carolina to Florida, extending into eastern Louisiana. It digs long burrows in which to sleep, estivate and hibernate. The gopher tortoise is under constant threat due to habitat loss resulting from human activity. Learn more about G. polyphemus by reading this DigiMorph account by Dr. Heather Jamniczky of the University of Calgary.  [more...] 
Black Vulture, Coragyps atratus30-Jun-2008
Black Vulture, <i>Coragyps atratus</i>
The black vulture is a member of Falconiformes, a lineage of birds characterized by a short, hooked beak, strong feet with long claws and opposable hind toe, and strong flight skills. Distributed throughout North and South America, Coragyps atratus are not capable of locating food sources on their own, nor can they open a carcasse. They use turkey vultures to both locate and open food sources, then may force the turkey vulture away. Learn more about black vultures by reading this DigiMorph account by Ashley Gosselin-Ildari of Stony Brook University.  [more...] 
Moira atropos, Heart Urchin16-Jun-2008
<i>Moira atropos</i>, Heart Urchin
Heart urchins, such as Moira atropos, are spatangoid echinoderms that live in muddy sediment or fine sands. They lack the Aristotle's Lantern chewing apparatus found in 'regular' sea urchins, relying instead on tube feet to bring detritus into the mouth. Moira atropos grows up to about 3 cm in length and lives at depths up to 445 m. Learn more about heart urchins by reading this new DigiMorph account by Louis Zachos of The University of Texas at Austin.  [more...] 
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