Geometry.Net - Basic_M: Marsupials General

Nature Science Update
kangaroos, koala bears and their relatives.) This discovery enriches our understandingof the early evolution of marsupials, and mammals in general.
http://www.nature.com/nsu/981210/981210-4.html

Extractions: They came from Ukhaa Tolgod HENRY GEE A famous palaeontologist once remarked that most of the early history of mammals could be written as generations of teeth. This view, though perhaps over-stated, has some basis in fact. The enamel that clothes teeth is the hardest organic substance known, and is likely to bear the burdens of fossilization far better than mere bones. But even teeth have their limitations as bearers of information about evolutionary history. This explains the excitement in palaeontological circles about several recent and spectacular discoveries of teeth attached to whole fossil skulls and skeletons, allowing light of unprecedented sharpness to be shone into hitherto shadowy corners of mammalian evolution. One such corner is illuminated in a report in Nature from Guillermo W. Rougier of the University of Louisville, Kentucky and colleagues. They describe two newly found specimens of a tiny mammal called Deltatheridium pretrituberculare that lived in the shadow of the dinosaurs, around 70 million years ago. Known since the early 1920s from teeth and a few fragmentary remains, the position of Deltatheridium in evolution has long been debated. But the new specimens provide enough information to show that this creature was related to the present-day marsupials (kangaroos, koala bears and their relatives.) This discovery enriches our understanding of the early evolution of marsupials, and mammals in general.
GeoZoo: "Shrew" Opossums, South American Marsupials
South American marsupials. marsupials RSVP. Caenolestids are tiny, shrewlikemarsupials that inhabit dense, humid forests in western South America.
http://www.geobop.com/Mammals/Marsupialia/Paucituberculata/

Extractions: S TORE ... Marsupials : Not all live in Australia and have pouches! (Paucituberculata) South American Marsupials Marsupials RSVP (order Paucituberculata, family Caenolestidae) C aenolestids are tiny, shrew-like marsupials that inhabit dense, humid forests in western South America. Ecuador seems to be home base for the common shrew opossums, while the Peruvian and Chilean shrew opossums are native to Peru and Chile. The longish, conical head bears small eyes. Their poor vision is balanced by a keen sense of smell. Though mainly terrestrial, shrew opossums are good climbers. Active by evening and at night, they have been little studied, due partly to their remote, rugged habitat. common shrew opossums:
LECTURES 32-39 (GOATER) 9. Phylum Annelida A. General B. Body Plan
LECTURES 3239 (GOATER) 9. Phylum Annelida A. general B. Body plan (fig. 33.23) C. Class Polychaeta general Motile vs. sedentary species (e.g. the fan worms) Reproduction D. Class Oligochaeta general (functional morphology from lab)
http://home.uleth.ca/bio/bio1020/3cam.pdf
AUslinks
Melbourne Maps and Guides. Sydney Maps and Guides Sydney Bus and Ferry Guide. GeneralReference Information Mammals of Australia. More marsupials in Australia.
http://www.biology.iastate.edu/BiologyPages/Opportunities/intop/1Australia/Ausli

Extractions: Rum Runner Diving Travel Info links Australia's Mapping Agency Cityrail Maps and Stations Melbourne Maps and Guides Sydney Maps and Guides ... Sydney Bus and Ferry Guide General Reference Information ANZWERS, A GOOD AUSTRALIAN SEARCH ENGINE Geography, UNSW Australian Snake Bites First Aid advice for venomous bites of Australian animals Australia Fact Sheets The Continent of Australia The World's Biomes Australian Governement Biodiversity Site Austalian Department of Agriculture, FIsheries and Forestry Phillip Island Lamington National Park ... Alice Springs Desert Park Australia Climate/Weather Weather in Australia Weather by city and state Regional Inpacts of Climate Change More marsupials in Australia Australian Marsupials checklist The Natural History of Marsupials History of Marsupials ... Two fighting kangaroos Geology of Australia Australian Geodynamics Earth's geology Australian Geological Survey Organisation Tectonic Plate Motion ... Great Dividing Range Photo Australian Plants Guide to Australian Plants Australian National Botanic Gardens Growing Australian Plants: Photos Australian plants worth growing ... Eucalyptus Acacia Links Acacia Photos Natural Perspectives Photos Wattles - genus Acacia ... Acacia Info
The Plush Code 2.0
aqu, Aquatics in general, lyn, Lynxes. bad, Badgers, mar, Marsupialsin general. bir, Nonpredatory birds, mee, Meerkats. bun, Bunnies, moo, Moose.
http://www.velocity.net/~galen/plushcod.html

Extractions: aar Aardvarks, anteaters, edentates leo Leopards amp Amphibians in general lio Lions aqu Aquatics in general lyn Lynxes bad Badgers mar Marsupials in general bir Non-predatory birds mee Meerkats bun Bunnies moo Moose can Wild canines mur Murids: mice, rats car Carnivores in general myt Mythicals in general cat Domestic felines ott Otters cer Cervines in general pan Pandas cet Cetaceans in general peg Pegasii che Cheetahs pen Penguins cou Cougars pig Pigs cow Cows pol Polar bears coy Coyotes pre Predators in general dee Deer pri Primates: monkeys, apes din Dinosaurs rac Raccoons dog Domestic canines rap Raptors, birds of prey dol Dolphins red Red pandas don Donkeys rei Reindeer dra Dragons rep Reptiles in general ele Elephants rod Rodents in general equ Equines in general sca Scaleys in general exo Exotics in general sea Seals fel Wild felines sku Skunks fer Ferrets sna Snakes fox Foxes sno Snow leopards fro Frogs squ Squirrels gar Gargoyles ted Teddy bears her Herbivores in general tig Tigers hip Hippopotami ung Ungulates in general hor Horsies uni Unicorns hum Humans urs Non-anthropomorphic bears ins Insects veg Vegetables kan Kangaroos wea Mustelids in general koa Koalas wha Whales lam Lambs wol Wolves
Plant Animal Genome V Conference
Comparative gene mapping suggests that mice, not marsupials, break moregeneral rules of vertebrate genome conservation. Comparative
http://www.intl-pag.org/5/abstracts/s24.html
Marsupials And Placentae
Zoology Archive. marsupials and Placentae. Saturday, April 20, 2002. name GeoffH. status student age 13 Question Do marsupials have placentas?
http://newton.dep.anl.gov/askasci/zoo00/zoo00340.htm

Extractions: Saturday, April 20, 2002 name Geoff H. status student age 13 Question - Do Marsupials have placentas? - Marsupials do have placentae. They are short lived but they do exist. This is one of those famous misconceptions. Reference site: http://www.ucmp.berkeley.edu/mammal/eutheria/placental.html Steve Sample ==========================================================
Female Marsupial Reproductive Cycles
THE general MARSUPIAL PATTERN. A feature of the gestation period ofmarsupials is its short duration. The foetal marsupial may spend
http://rubens.anu.edu.au/student.projects/kangaroos/r-cycles.html

Extractions: REPRODUCTIVE CYCLES A feature of the gestation period of marsupials is its short duration. The foetal marsupial may spend as little as twelve to thirteen days in the reproductive tract. Why is the gestation period so short and what happens in this time? In female bird and mammals the reproductive tract has two primary functions. The first is the reception and transport of spermatozoa to the egg so that fertilisation can occur. The second function is to provide the egg with coats and 'shells' and to provide nourishment for the developing embryo. The complex sequence of events which make this possible is called the oestrus cycle. There are two phases of the cycle: the pro-oestrus or follicular phase and the luteal or secretory phase. These names refer to stages which occur in the activity of the ovary during the cycle, but are reflected in the whole reproductive tract. The brief post-oestrus proliferative phase in the uterus is followed by a secretory or luteal phase, which is under the control of the hormone progesterone, produced by the corpus luteum. The corpus luteum is a gland that forms the wall of the ruptured ovarian follicle. During the luteal phase the uteri become highly secretory and swollen and vascular. Abundant secretory material is poured into the uterine lumen to provide nutrients for the growth of the embryo and its associated membranes. The luteal phase varies in length in different marsupials and is followed by a regressive phase during which there is a reduction in size complexity and secretory activity of the uterine glands. Anoestrus, an overall shutdown of the system, follows in those species which have only one oestrus per breeding season. However in continuos breeders or species that have more than one oestrus a regressive or post-luteal phase grades into the next pro-oestrus phase.
Professor Terence Dawson
aspects with which I have been most concerned are (a) comparative physiology, particularlyin relation to the evolutionary biology of marsupials and monotremes
http://www.bees.unsw.edu.au/staff/visiting/dawson/research.html

Extractions: (b) ecological physiology, notably the adaptation to arid environments of mammals and birds. In regard to the latter aspect, I have strong interests in the foraging ecology of arid rangeland species, mainly from the point of view of the constraints that the physiology of a species place on its ability to harvest energy from the harsh environment.
Anti-Pschutt Inc: General Information: Meet Awerthan
Name Awerthan. Location Houston, TX. Age 19. Joined API April1998. Email awerthan@hotmail.com. Homepage He has no homepage.For
http://www.urbanemonkey.com/api/about/awerthan.html
GeoZoo: Bandicoots & Bilbies! (order Peramelemorphia)
Bandicoots (from an Indian word that means pig rat) and bilbies are small tomediumsized ground-dwelling marsupials with long pointed heads and compact
http://206.63.59.98/Mammals/Marsupialia/Peramelemorphia/

Extractions: S TORE ... Marsupials : Not all live in Australia and have pouches! (Peramelemorphia) Australian Marsupials B In most species, the forefeet are adapted for digging, with strong claws on the second, third, and fourth toes. The first and fifth toes are absent or small and clawless. On the hind feet, the second and third toes are joined together (syndactylous) but have separate claws. The pig-footed bandicoot ( Chaeropus ecaudatus ) walked and ran on two toes on each forefoot and one on each hind foot, each equipped with a hoof-like claw. It became extinct sometime after 1950. They are considered to be among the polyprotodont marsupials, and the combination of syndactylous feet and polyprotodont incisors defines them. Bandicoot and bilby embryos form a placenta, unlike any other marsupials but the koala and wombats. However, gestation (pregnancy) is very brief, lasting as little as 12½ days in some species. These are among the marsupials with a well-developed pouch.
Watching Wildlife Australia
Many of Australia's animals are secretive and nocturnal particularlymarsupials - and the general public doesn't know much about them.
http://www.ecu.edu.au/ses/research/scapes/journal/wildlife.html

Extractions: Available in many bookshops or through their web site at http://shop.lonelyplanet.com/ Lonely Planet have decided that eco-tourism is a significant part of the travel market, and Watching Wildlife is a series created for the fauna-friendly traveller. This book was the first, and there are now guides for East Africa and Southern Africa. It's not an easy thing to produce a cohesive travel book. I helped one of the authors with her research on the Western Australian section of this book, and heard some of the difficulties. The editors have to chose a certain style, and then coordinate the writers, illustrators, and photographers. The writers and other contributors also have to try to match the chosen style. The sense of continuity in the guide suggests that they succeeded. Many scientists get nervous about writing books for the general public. Sometimes its the accusation of dumbing down' science instead of training people to think better. It's also the loss of precision that gives scientists the heeby jeebies. Academic science emphasises exactitude, but complex discussions of fine points of science can make their papers impenetrable. Of course that's the first thing a creative journalist wants to remove to make the story interesting. The Wildlife Australia guide manages to deal with the difficulties of balancing science and readability. Of necessity, explanations are simplified, but it doesn't avoid key concepts. If you don't understand the meaning of littoral' or crepuscular', or even zooxanthellae', it's in the brief glossary at the back. Perhaps books like this are a reflection of the growth of environmental awareness in among the general population. Ten years ago, how many people knew what biodiversity meant?
THE TAME BEAST - GENERAL
periodically. Main interests are mammals insectivores and marsupialsmainley. Links! links to general care and information about pets.
http://www.tamebeast.com/9.htm

Extractions: GENERAL Anne Surely's Private Room - My page is about myself, my horse, my cats, my birds, all our animals and I hope you like it. I am 11 years old. Art By Roslyn - Limited edition handpainted wearable art; custom portraits of pets on clothing; acrylic and sumi-e wildlife paintings, capturing spiritual essence in motion and emotion. Commissions welcome. The Cattle Pages - Guide to the cattle industry on the internet. Hundreds of pages, hundreds of links. Christy's Critter and Conservation Corner - Animals, Zoo info, Conservation, Trivia page, Tons of animal links! Critter's Exotic Animals - Exotic wildlife database, new animals added periodically. Main interests are mammals: insectivores and marsupials mainley. Firm believer in "Conservation through Captive Propagation". A Dwarf Hamster Homepage!
Education World® - *Science : Space Studies : Astronomy : Stars & Constellation
Australian Animals Slide Show drawings and useful information on Australian marsupialsand The Great Barrier Reef, from the children at Daniel Elementary.
http://db.education-world.com/perl/browse?cat_id=146

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