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Latest Mammal Stories

2008-10-07 06:00:28

By Dan Vergano Many animals worldwide, from toads to tigers, face extinction, a "terrifying possibility" underlined by the release Monday of a report on mammals. The report due Friday in the journal Science says that of the world's 5,487 mammal species, at least one in four land species and one in three marine species face extinction in the foreseeable future. The International Union for the Conservation of Nature (IUCN) predicted earlier that one in eight bird, one in three...

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2008-10-06 11:50:00

An international survey showed on Monday that a quarter of the world's mammals are threatened with extinction due to destruction of habitats and hunting. The report showed populations of half of all 5,487 species of mammals were in decline. Mammals range in size from blue whales to Thailand's insect-sized bumblebee bat. "Mammals are declining faster than we thought -- one in four species is threatened with extinction worldwide," said Jan Schipper, who led the team. The report updates the...

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2008-09-20 08:51:29

Yale researchers have shown that the origin and evolution of the placenta and uterus in mammals is associated with evolutionary changes in a single regulatory protein, according to a report in Proceedings of the National Academy of Sciences. "Many past studies have shown that genes are regulated and altered by changes within their own structures. This is the first work suggesting that the evolution of transcription factors "” separate regulatory proteins "” may play an active role...

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2008-08-19 15:10:00

Counter to prevailing wisdom that self-awareness is something only experienced by humans and a few other higher-end mammals, German scientists reported on Tuesday that magpies can recognize themselves in the mirror.  The discovery highlights the mental skills of some birds - an ability once believed to belong only to humans, chimpanzees, dolphins and elephants. "This is a remarkable capability that is at least a pre-requisite of self-recognition and might play a role in perspective...

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2008-07-10 08:20:00

Large-brained simians of the New and Old Worlds independently arose from smaller-brained ancestors After taking a fresh look at an old fossil, John Flynn, Frick Curator of Paleontology at the American Museum of Natural History, and colleagues determined that the brains of the ancestors of modern Neotropical primates were as small as those of their early fossil simian counterparts in the Old World. This means one of the hallmarks of primate biology, increased brain size, arose independently in...

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2008-05-07 13:40:00

An international consortium of scientists, led by Washington University School of Medicine in St. Louis, has decoded the genome of the platypus, showing that the animal's peculiar mix of features is reflected in its DNA. An analysis of the genome, published today in the journal Nature, can help scientists piece together a more complete picture of the evolution of all mammals, including humans. The platypus, classified as a mammal because it produces milk and is covered in a coat of fur, also...

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2008-04-15 00:25:00

Researchers from Oxford University and Stony Brook University have discovered an ancient water-dwelling mammal that had close ties to modern day elephants.The animal is similar to a tapir, a hoofed mammal that resembles a cross between a horse and a rhino."It has often been assumed that elephants have evolved from fully terrestrial ancestors and have always had this kind of a lifestyle," said DR. Erik Seiffert, co-author of the study published in Proceedings of the National Academy of...

2008-03-24 01:56:49

Just in time for Easter, the oldest rabbit relation is bounding onto the scientific scene. Tiny foot bones from a 53 million-year-old rabbit ancestor represent the oldest known record of hippity-hoppity mammals and their closest evolutionary relations, according to a new study. The ankle and heel bones were discovered in a coal mine in Gujarat, in west-central India, and recently found by a team of paleontologists to belong to the Lagomorpha, a classification of mammals that...

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2008-03-04 00:00:00

A scientist from the Carnegie Museum of Natural History has discovered remains of the earliest-known primate to live in North America. The discovery also provides an explanation of how these long-extinct primates were able to reach the continent.The primate, called Teilhardina magnoliana and part of the mammalian group that includes monkeys and apes, survived on berries and insects, and measured just three inches long weighing less than one ounce. After unearthing the primate, paleontologist...

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2008-02-22 16:30:00

The oldest fossils to date of early rabbit relatives were recently unearthed. These specimens, which are 53 million years old, are tiny ankle bones which are clearly adapted to running. These fossils belong to lagomorphs, a group which currently includes rabbits, hares and pikas. Prior to this finding which is published in the journal Proceedings of the Royal Society B: Biological Sciences, the oldest known lagomorphs dated to around 48 million years ago. The ankle bones which were found in...


Latest Mammal Reference Libraries

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2007-06-25 07:54:33

The Aardvark, Orycteropus afer, sometimes called the "˜antbear', is a medium-sized mammal native to Africa. It lives south of the Sahara desert where there is suitable habitat for them to live. It prefers savannas, grasslands, woodlands and bush. They are not found in deserts but are found in areas where there is a good supply of ants and termites. The most distinctive characteristic of the Aardvark is their teeth. Instead of having a pulp cavity, they have a number of thin tubes of...

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2007-01-19 11:46:11

The European Mole, Talpa europaea, is a mammal of the order Soricomorpha. This mole lives in an underground tunnel system, which it constantly extends. It uses these tunnels to hunt its prey. Under normal conditions the displaced earth is pushed to the surface, resulting in the characteristic "mole hills". It has a cylindrical body and is around 5 1/4 inches (12 cm) long. Females are typically smaller than males. The eyes are small, and hidden behind fur. Its ear is just a small ridge...

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2006-12-12 11:27:08

The platypus is a semi-aquatic endemic to eastern Australia and Tasmania. Together with the four species of echidna, it is one of the five species of monotremes, the only mammals that lay eggs instead of giving birth to live young. It is the sole living representative of its family and genus, though a number of related species have been found in the fossil record. The unique appearance of this egg-laying, duck-billed mammal baffled naturalists when it was first discovered, with some...

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