Introduction 1. INTRODUCTION A typical ichthyosaur looks like this (see note for derivation and pronunciation of "ichthyosaur", as well as its usage in this page). Yes, just like a fish. The strange thing is that they were not fish at all: they were reptiles like lizards, snakes, and crocodiles. You can easily tell this by looking at the skull and fins.
Teaching About Evolution and the Nature of Science In a 1786 letter to a friend, Thomas Jefferson called for "the diffusion of knowledge among the people. No other sure foundation can be devised for the preservation of freedom and happiness."1 Jefferson saw clearly what has become increasingly evident since then: the fortunes of a nation rest on the ability of its citizens to understand and use information about the world around them. We are about to enter a century in which the United States will be even more dependent on science and technology than it has been in the past. Such a future demands a citizenry able to use many of the same skills that scientists use in their work—close observation, careful reasoning, and creative thinking based on what is known about the world. The ability to use scientific knowledge and ways of thinking depends to a considerable extent on the education that people receive from kindergarten through high school.
Being A Fish in Japan - Mischa Kamp and Mascha Halberstad Mischa Kamp Mischa Kamp (1970) graduated from the Netherlands Film and Television Academy (NFTA) in Amsterdam. Her graduation short Mijn moeder heeft ook een pistool (My Mother Has A Gun Too), enjoyed widespread international attention, including selection for the Student Oscars and winning several awards. After graduating, Kamp worked as a director for the Dutch TV show Waskracht! making short films as well as two documentaries Being a Dog in New York and Rafael, Pedro & Adel, shot in Cuba. In 2005, Mischa directed the multiple award-winning family movies Winky's Horse and its 2007 follow-up Where Is Winky's Horseω For the popular Dutch children's program Villa Achterwerk she made Naked – an animated documentary series about the trials of being a teenager, produced by Submarine.
What did our ancestors look like? Hair and eye color can be determined for ancient human remains A new method of establishing hair and eye colour from modern forensic samples can also be used to identify details from ancient human remains, finds a new study published in BioMed Central's open access journal Investigative Genetics. The HIrisPlex DNA analysis system was able to reconstruct hair and eye colour from teeth up to 800 years old, including the Polish General Wladyslaw Sikorski (1881 to 1943) confirming his blue eyes and blond hair. A team of researchers from Poland and the Netherlands, who recently developed the HIrisPlex system for forensic analysis, have now shown that this system is sufficiently robust to successfully work on older and more degraded samples from human remains such as teeth and bones. The system looks at 24 DNA polymorphisms (naturally occurring variations) which can be used to predict eye and hair colour.
The Immortal Life « Rebecca Skloot Her name was Henrietta Lacks, but scientists know her as HeLa. She was a poor black tobacco farmer whose cells—taken without her knowledge in 1951—became one of the most important tools in medicine, vital for developing the polio vaccine, cloning, gene mapping, in vitro fertilization, and more. Henrietta’s cells have been bought and sold by the billions, yet she remains virtually unknown, and her family can’t afford health insurance.
12 Elegant Examples of Evolution - Wired Science In preparation for Charles Darwin’s upcoming 200th birthday, the editors of Nature compiled a selection of especially elegant and enlightening examples of evolution. They describe it as a resource "for those wishing to spread awareness of evidence for evolution by natural selection." Given the continuing battles over evolution in America’s public schools — and, for that matter, the Islamic world — such a resource is most welcome. Unique ancient spider attack preserved in amber Researchers have found what they say is the only fossil ever discovered of a spider attack on prey caught in its web -- a 100 million-year-old snapshot of an engagement frozen in time. The extraordinarily rare fossils are in a piece of amber that preserved this event in remarkable detail, an action that took place in the Hukawng Valley of Myanmar in the Early Cretaceous between 97-110 million years ago, almost certainly with dinosaurs wandering nearby. Aside from showing the first and only fossil evidence of a spider attacking prey in its web, the piece of amber also contains the body of a male spider in the same web. This provides the oldest evidence of social behavior in spiders, which still exists in some species but is fairly rare. Most spiders have solitary, often cannibalistic lives, and males will not hesitate to attack immature species in the same web.
UPD8 - Antibiotic cockroaches - Type: Activity Learning Strategy: Data work Topic: Drugs Superbugs like MRSA are on the rampage, killing vulnerable hospital patients. What are scientists doing to combat antibiotic-resistant pathogens? This activity teaches new content from the 2011 GCSE specification. The Tree of Life If you want a hardcopy of this poster, you can either (1) download the PDF file here for free and take it to a print shop (Kinkos will work) and get it printed as a large poster (it prints 24" x 48"), or (2) buy it online at Zazzle.com (click here to jump to the poster). The words in the image above may look a bit blurry because this web page is displaying a compressed JPEG image on this web site (to improve download time). If you make a print from the PDF file (or zazzle) all the words and lines will be crisp and clear.
Hybrid SHEEP AND GOATS In "The Variation Of Animals And Plants Under Domestication" Charles Darwin wrote: "Captain Hutton, in India, crossed a tame goat with a wild one from the Himalaya, and he remarked to me how surprisingly wild the offspring were." Although sheep and goats seem similar and can be mated together, any offspring are generally stillborn due to chromosome mismatch (sheep have 54, goats have 60). At Botswana Ministry of Agriculture, a ram housed with a nanny goat impregnated the goat and a live offspring was produced with 57 chromosomes.