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Latest Mammal Stories

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2009-12-03 14:00:00

The largest known mass extinction in Earth's history, about 252 million years ago at the end of the Permian Period, may have been caused by global warming. A new fossil species suggests that some land animals may have survived the end-Permian extinction by living in cooler climates in Antarctica. Jörg Fröbisch and Kenneth D. Angielczyk of The Field Museum together with Christian A. Sidor from the University of Washington have identified a distant relative of mammals, Kombuisia...

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2009-11-11 08:07:31

Were dinosaurs "warm-blooded" like present-day mammals and birds, or "cold-blooded" like present day lizards? The implications of this simple-sounding question go beyond deciding whether or not you'd snuggle up to a dinosaur on a cold winter's evening. In a study published this week in the journal PLoS ONE, a team of researchers, including Herman Pontzer, Ph.D., assistant professor of anthropology in Arts & Sciences, has found strong evidence that many dinosaur species were probably...

2009-11-10 18:03:46

The females of the recently discovered Osedax marine worms feast on submerged bones via a complex relationship with symbiotic bacteria, and they are turning out to be far more diverse and widespread than scientists expected. Californian researchers investigating the genetic history of Osedax worms have found that up to twelve further distinct evolutionary lineages exist beyond the five species already described. The new findings about these beautiful sea creatures with unusual sexual and...

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2009-11-02 10:27:46

New insights into the biology of the platypus and echidna have been published, providing a collection of unique research data about the world's only monotremes. University of Adelaide geneticist Dr Frank Grtzner and his team have authored five of 28 papers which appear in two special issues of the Australian Journal of Zoology and Reproduction Fertility and Development. The articles shed new light on the extraordinary complex platypus sex chromosome system. "For the first time we have looked...

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2009-10-09 06:40:00

The fossil of a previously unknown chipmunk-sized mammal was discovered by researchers in north eastern China, who believe it could lead to a better understanding of how human hearing evolved. The team of paleontologists found the 123-million-year-old creature, which is just five inches long, in fossil-rich Liaoning Province, close to where China borders North Korea. "What is most surprising, and thus scientifically interesting, is the animal's inner ear," said Zhe-Xi Luo, a curator at the...

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2009-09-25 09:02:59

When the ancestors of living cetaceans"”whales, dolphins and porpoises"”first dipped their toes into water, a series of evolutionary changes were sparked that ultimately nestled these swimming mammals into the larger hoofed animal group. But what happened first, a change from a plant-based diet to a carnivorous diet, or the loss of their ability to walk? A new paper published this week in PLoS One resolves this debate using a massive data set of the morphology, behavior, and...

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2009-09-04 09:23:53

Prediction about enamelin gene by UC Riverside biologists upheld by evidence Biologists at the University of California, Riverside report new evidence for evolutionary change recorded in both the fossil record and the genomes (or genetic blueprints) of living organisms, providing fresh support for Charles Darwin's theory of evolution. The researchers were able to correlate the progressive loss of enamel in the fossil record with a simultaneous molecular decay of a gene, called the enamelin...

2009-08-21 09:54:12

Exciting research into Brown adipose tissue (BAT) "” brown fat, which is found in abundance in hibernating animals and newborn babies "” could lead to new ways of preventing obesity.Studies have already shown that BAT activity in adults is reduced with obesity. Therefore, promoting BAT function could prevent or reduce obesity in some people. New research, led by Michael Symonds, Professor of Developmental Physiology in the School of Clincal Sciences at The University of...

2009-08-07 14:22:16

A global warming span from 53 million to 47 million years ago strongly influenced the biodiversity of western North America, geologists said. The warming spurred a biodiversity boom of plants and animals, the researchers reported this week in the Proceedings of the National Academy of Sciences. Today, the middle of Wyoming is a vast desert, and a few antelope and deer are all you see, geologist Michael Woodburne, of the Museum of Northern Arizona, said. Fifty million years ago, however, when...

2009-08-06 12:54:43

A period of global warming from 53 million to 47 million years ago strongly influenced plants and animals, spurring a biodiversity boom in western North America, researchers from three research museums report in a paper published online this week in the Proceedings of the National Academy of Sciences."Today, the middle of Wyoming is a vast desert, and a few antelope and deer are all you see," said lead author Michael Woodburne, honorary curator of geology at the Museum of Northern Arizona....


Latest Mammal Reference Libraries

Echidna, Tachyglossidae
2014-06-19 07:53:10

Tachyglossidae is a family that holds eight species of echidnas, also known as spiny anteaters, four of which are known only from fossils. The remaining four species, which include the platypus, can only be found in New Guinea and Australia. They prefer to reside in wooded areas and can be found under piles of vegetation, roots, and occasionally inside the burrows of other animals. This family is named after the "Mother of All Monsters" in Greek mythology, although the two do not resemble...

42_e96da6f440fbe9416f53bf5be8b5f8e3
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...

42_767deb25d6255da2c5d97b07d1e38516
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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Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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