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Scientists Reconstruct Habitat of Early Human Ancestors

Homo habilis and Paranthropus boisei, these two species were similar in that they had a rough lifespan of anywhere from three to four decades and a height of around 4.5 feet to 5.5 feet. However, the latter is thought to have been more heavyset and with a smaller brain capacity than Homo habilis. Scientists involved in the research feel that the two species were unlikely to have camped there, but instead used the cover of the nearby acacia and palm trees to feed off of the carcasses of either their own kills or those taken from other carnivores. When and where early human ancestors began eating more meat are crucial questions, as an increased amount of protein in the diet of hominins is thought to be one of the first indicators of an increase in brain size. The research study can be found online here Image courtesy of M.Lopez-Herrera via The Olduvai Paleoanthropology and Paleoecology Project and Enrique Baquedano.]]>

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Book Reviews

The Wealth Of Nations: Smith's Basis for Modern Political Economy

The Wealth of Nations is possibly the defining book of political economy, providing the ideological foundations for economic liberalism and laissez-faire approaches to economics. Written over a ten year period, the book was pioneering in its realisation of the political dimension to modern economics. Works on economics have of course been written throughout human history, but prior to The Wealth of Nations they tended to subjugate economics to the role of facilitator for other goals such as imperial expansion or the consolidation of governmental power. Published in 1776, Smith’s work made economics its focus, striving to explain how an economy could be run most efficiently, and how it was central to any society. The first two books of Smith’s seminal work focus on the division of labour and how it is connected to the prosperity of a society. It ultimately argues that the wealth of a nation depends on the proportion of those who are employed to those who are not, as well as the skill of the workers and the means of distributing the products of their labour. Put simply, a strong, intelligent work force increases the efficiency of production (thus encouraging the reinvestment of surpluses into educating the population). The more people who are employed, the greater the productivity of the economy, but also the more consumers there are for the products of the economy. Moving onto the third book, Smith discusses the development of societies, focusing on his native Great Britain in particular. The book charts the progression from early hunter-gatherers to the rise of agriculture and culmination in the age of international commerce. In particular, it criticises the period of feudalism across Europe following the collapse of the Roman Empire, arguing that indentured labour was an inefficient system, obstructing the progress of society. Book VI criticises the mercantile system of commerce for fixating too heavily on precious metals. Smith argues that on a national scale, true value is found in the goods and services that a nation produces and circulates. Forming the idea of Gross Domestic Product, Smith created a measure by which all modern economies are judged. Finally, Smith uses the last book to discuss ‘the revenue of the sovereign’, essentially the sources of a government’s income, but also governments’ role within the economy. It explains fair taxation, and the roles the government should play in fostering public works which facilitate education, commerce and defence. Again, the role of government is mostly located in ensuring conditions are ideal for the economy to thrive. “The subjects of every state ought to contribute towards the support of the government, as nearly as possible, in proportion to their respective abilities.” Often used as a defense of laissez-faire capitalism, it is important to point out that although a firm believer in the centrality of economy to society, in ‘The Wealth of Nations‘ Smith did not advocate ruthless consolidation of wealth by a few individuals. He argued against monopolies and lobbying groups, on the basis that they interfered with the free, natural movement of the economy. “Wherever there is great property there is great inequality. For one very rich man there must be at least five hundred poor, and the affluence of the few supposes the indigence of the many.” He explains in The Wealth of Nations, “The affluence of the rich excites the indignation of the poor, who are often both driven by want, and prompted by envy, to invade his possessions.” Critics of Smith’s work argue that he focuses too heavily on the strength of the economy and fails to take into account the moral goals it should serve in relation to the population. It is a similar criticism to that often thrown at the governments who most rigidly stick to the ideas of free market economics. However, just because Smith’s work laid the ideological basis for laissez-faire economics doesn’t mean it should also be associated with the worst excesses that have been carried out in its name.

Related Books


The Wealth of Nations book

The Wealth of Nations
Vol. 2 of 2Vol. 2 of 2
by Adam Smith

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Ichthyosaurs – Ancient Victims of Climate Change

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Food Prep and Meat Eating Helped Human Evolution

Nature this week says that our Paleolithic evolutionary ancestors helped pave the way for their own evolution into modern humans by both eating meat, and preparing their food in certain ways prior to cooking it. The changes led humans living in the Stone Age to evolve with smaller teeth and faces thanks in no small part to adopting a more omnivorous diet that required some complexity to prepare, according to study author Daniel Lieberman from Harvard University. Research conducted into cooking in the past has singled out how pivotal it was to human evolution, but has been criticized for being too broad in giving credit for the changes that occurred to the face and head over the last 3 million years or so. The new study tackles this question; in an interview with USA Today, Lieberman did acknowledge that cooking food is certainly important, but the simple act of roasting raw meat over a fire isn’t the entirety of the story. The author and his colleagues point out in the research study how pounding, slicing, chopping, and other methods of food preparation and processing had effects on human anatomy and physiology that were profound – even to the point in helping humanity develop the ability to speak and run on two legs. There are other important facets of the paper, including the methods used to gather research. One of these methods involved volunteers willing to chew all manner of food while the researchers monitored their bite strength and other variables. Katherine Zink, a colleague of Lieberman from Harvard, worked together with him to see how humans handled masticating food like beets, carrots, yams, and even raw goat meat sourced from local goats. At first, the goat meat proved to be too tough for human teeth; however, once sliced into smaller pieces, the meat was much more manageable and was easily eaten. Vegetables that were eaten intact instead of first pounded by a stone tool were likewise harder to eat for the volunteers. Based on these findings, the research team feels that the inclusion of meat – sliced meat especially – into the diet of our human ancestors made it easier for them to enjoy relatively high levels of nutrition without having to work their jaws quite as hard. This could have contributed to the differences in jaw muscles and teeth in Homo erectus, a human ancestor that evolved shortly after the practice of using stone tools and eating meat. As humans no longer had to process and prepare their food by mouth but were instead able to do so with tools, early humanity evolved adaptations like shorter jaws and smaller faces that improved their ability to speak and to run. However, not everyone at Harvard is convinced that the new study is on the mark. Richard Wrangham, a colleague of both Zink and Lieberman, told USA Today that the relatively diminutive digestive tract of Homo erectus would have precluded the species from extracting enough calories from raw plants to thrive. Instead, he says that cooking food would have had to have played a much more important role than it does in the new study. The research can be found online here]]>

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News

Lithuania Takes Back its Independence

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The Evolution of Fins and Limbs More Similar Than Originally Believed

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Eastern US Forest Ecology Changes for Worse Over Time

Tree Physiology, can be found online here]]>

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First Charges Brought Against My Lai Soldiers

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History Rediscovered with Cache of Documents Found in Egypt

Ahram Online. The documents were discovered accidentally in a Supreme Council of Antiquities storehouse in the Al-Abbassiya district of Cairo. The collection includes letters exchanged between former directors of the Egyptian Antiquities Organization such as Jacques de Morgan (a French archaeologist who served as the Director of Antiquities in Egypt in the nineteenth century), Gaston Maspero (a Director of Antiquities who introduced the first successful Anti-Looting laws in Egypt) and Pierre Lacau (a French Egyptologist and Philologist. He served as Egypt’s Director of Antiquities from 1914 until 1936), as well as archaeologists who were working in Egypt at the time, like Howard Carter (who discovered the tomb of the Eighteenth Dynasty Pharaoh, Tutankhamun). Old maps showing the Theben necropolis located in Luxor from 1921, and the Eastern Desert from 1904 were part of the find, as were papers from the Fayyed and Gabry families who traded in antiquities at the time. Also included were architectural diagrams, and files pertaining to the Egyptian Exploration Society and the French Institute for Oriental Studies. During this time period the French Institute had people working at the ancient Egyptian city of Tanis, the Karnak Temple in Luxor and Matariya in Heliopolis. Additionally, a complete file on the Egyptian Exploration Society, including a law which organized the work on antiquities, and reports written in a variety of languages about various digging operations being conducted during the eighteenth century, were found. Before the mid-nineteenth century, there were no regulations regarding the Egyptian antiquities trade. As a result, thousands of artifacts, everything from statuettes and jewelry, to reliefs and entire monuments, were taken from their ancient locations and shipped to museums and private collections around the globe. In 1835, Egyptian ruler, Mohamed Ali banned the unlawful removal of antiquities from the country and designated a building in Cairo to function as a storehouse for the artifacts. However, this did not stop the practice by rulers of giving the artifacts as gifts to foreign dignitaries. 1858 saw the creation of the Antiquities Service to stop the ongoing illicit trade of Egyptian artifacts. For just under a century, the Antiquities Service was led by French scholars. When the British troops left Egypt in the 1950s, the Antiquities Service became a truly Egyptian-run organization. In 1994, the department name was changed to the Supreme Council of Antiquities (SCA) by Presidential Decree. The Egyptian Antiquities Registration Centre will begin an immediate restoration process overseen by a newly formed committee tasked with examining and archiving the papers.]]>

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Ancient Geckos Found Preserved in Prehistoric Amber

here Image courtesy of Wikimedia Commons user: Timdwilliamson]]>