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Cambrian explosion

Cambrian explosion
The Cambrian explosion has generated extensive scientific debate. The seemingly rapid appearance of fossils in the “Primordial Strata” was noted as early as the 1840s,[14] and in 1859 Charles Darwin discussed it as one of the main objections that could be made against the theory of evolution by natural selection.[15] The long-running puzzlement about the appearance of the Cambrian fauna, seemingly abruptly and from nowhere, centers on three key points: whether there really was a mass diversification of complex organisms over a relatively short period of time during the early Cambrian; what might have caused such rapid change; and what it would imply about the origin of animal life. Interpretation is difficult due to a limited supply of evidence, based mainly on an incomplete fossil record and chemical signatures remaining in Cambrian rocks. Key Cambrian explosion events Gaskiers glaciationArchaeonassa-type trace fossils History and significance[edit] Dating the Cambrian[edit] = Basal node

http://en.wikipedia.org/wiki/Cambrian_explosion

Related:  Cambrian Period: 542–488.3 myaThinking Tools

Burgess Shale The Burgess Shale Formation, located in the Canadian Rockies of British Columbia, is one of the world's most celebrated fossil fields.[2] It is famous for the exceptional preservation of the soft parts of its fossils. At 505 million years (Middle Cambrian) old,[3] it is one of the earliest fossil beds containing soft-part imprints. The rock unit is a black shale and crops out at a number of localities near the town of Field in Yoho National Park and the Kicking Horse Pass.

You're a Criminal in a Mass Surveillance World – How to Not Get Caught Sometimes you just get lucky. I was in Amsterdam when the Snowden story broke. CNN was non-stop asking politicians and pundits, “Is Edward Snowden a traitor?” Those who said he betrayed America also said something else: Mass surveillance is only an issue if you’re a criminal. Was National Geographic WRONG? Despite the fact that modern evolutionists have rejected almost everything Darwin believed, National Geographic makes the claim that Darwin was right. In big letters on pages 2 and 3, National Geographic asks the question, “Was Darwin wrong?” Then, in letters that take up the entire top half of page 4, they answer, “No. the evidence for evolution is overwhelming.” So, let’s look at what that evidence is. Just a Theory They began their article by defending against the “evolution is just a theory” argument.

Burgess Shale type fauna A number of assemblages bear fossil assemblages similar in character to that of the Burgess Shale. While many are also preserved in a similar fashion to the Burgess Shale, the term "Burgess Shale type fauna" covers assemblages based on taxonomic criteria only.[1] Extent[edit] The Top 100 Documentaries We Can Use To Change The World A more beautiful, just and sustainable world is possible. Take this library and use it to inspire global change! Originally featured on Films For Action DARWIN WAS WRONG If a fair maiden kisses a frog which instantly changes into a handsome prince, we would call it a fairy tale. But if the frog takes 40 million years to turn into a prince, we call it evolution. Time is the evolutionist's magic wand. Fairy tales come in many forms! We often hear that science has proved Darwin's theory of evolution.

Burgess Shale type preservation The Burgess Shale of British Columbia is famous for its exceptional preservation of mid-Cambrian organisms. Around 40[1] other sites have been discovered of a similar age, with soft tissues preserved in a similar, though not identical, fashion. Additional sites with a similar form of preservation are known from the Ediacaran[2] and Ordovician periods.[3] How Covert Agents Infiltrate the Internet to Manipulate, Deceive, and Destroy Reputations One of the many pressing stories that remains to be told from the Snowden archive is how western intelligence agencies are attempting to manipulate and control online discourse with extreme tactics of deception and reputation-destruction. It’s time to tell a chunk of that story, complete with the relevant documents. Over the last several weeks, I worked with NBC News to publish a series of articles about “dirty trick” tactics used by GCHQ’s previously secret unit, JTRIG (Joint Threat Research Intelligence Group).

Creationism From Conservapedia Creationism is the belief that the earth and universe and the various kinds of animals and plants were created by God or some other supreme being. Those that hold the views of Creationism are referred to as Creationists.[1] Biblical creationism is primarily based on: the compelling testimony provided by God's wondrous creation; the historical and prophetic evidence supporting the Bible; religious belief and on the scientific evidence provided through creation science. Biblical creationism, which includes the idea that man is created in the image of God, has profoundly affected Western Civilization in a positive way. Some of the areas it has benefited Western culture is in the areas of human rights and law, ethics and morality, economics, science, and the arts (see also: Christianity and science and Social effects of the theory of evolution).[2]

Kooteninchela deppi named after Johnny Depp A scientist has discovered an ancient extinct creature with scissor hand-like claws in fossil records and named it in honour of a movie star. The 505 million year old fossil called Kooteninchela deppi (pronounced Koo-ten-ee-che-la depp-eye), which is a distant ancestor of lobsters and scorpions, was named after the actor Johnny Depp for his starring role as Edward Scissorhands - a movie about an artificial man named Edward, an unfinished creation, who has scissors for hands. David Legg named Kootenincheladeppi in honour of his favouritemovie star Kooteninchela deppi is helping researchers to piece together more information about life on Earth during the Cambrian period when nearly all modern animal types emerged.

Do Atheists Exist? A new “godless” church makes you wonder. For people who like church except for the parts about God, a British couple have bodied forth a new denomination that cheerfully excludes him, raising the volume on the question “What is atheism?” several decibels overnight. The Sunday Assembly, a “godless congregation” founded in East London last January by standup comedians Sanderson Jones and Pippa Evans, now boasts affiliates in Brighton, Bristol, Oxford, Canberra, Melbourne, New York, and Portland, Ore. On September 21, it announced a “global missionary tour”: This past fall, interested individuals in 22 cities across the Anglosphere held Sunday Assembly meet-ups.

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