Mammals – Page 52

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Missing Link, or Just Jawboning About Ear Evolution?

March 19, 2007

Tetrapod vertebrates (four-footed animals with backbones) comprise a dizzying array of species, both living and extinct. When is it justifiable to arrange different forms into an ancestral evolutionary sequence, especially when some members are extinct and others are still alive today? On what basis can scientists claim that a discovery demonstrates evolution? Some Chinese scientists […]

Birds

Evolutionary Predictions Fail Observational Tests

March 8, 2007

Lately, some expectations by evolutionists have not been fulfilled. Here are several recent examples of evolutionary upsets: Dinobird genes cook up scrambled eggs: Scientists expected that the dinosaurs presumed ancestral to birds would show a decreasing genome size. The thinking was that the cost of maintaining a large genome takes its toll on flight. In […]

Mammals

Are Evolutionists Converging on a Story of Vertebrates?

January 10, 2007

Here’s what the Linnean Society said in 1909, celebrating the 50th anniversary of Darwin’s Origin of Species, about the rise of vertebrates (fish, reptiles, amphibians, and mammals): “When we return home and our friends gleefully enquire, ‘What then has been decided as to the Origin of Vertebrates?’, so far we seem to have no reply […]

Fossils

Life Out of Place, Life Out of Time

December 13, 2006

Evolutionists have a standard timeline based on Darwin’s “tree of life” that indicates when complex life forms should have appeared. What happens when the wrong animal shows up in the wrong place or time? The theory is never falsified; it is just accommodated to the new data, as simply as rearranging branches on a Christmas […]

Amazing Facts

Little Animals, Big Technologies

November 28, 2006

You can’t always say bigger is better. In the animal world, some of the smallest critters have capabilities that belie their size and compare well with their less dimensionally-challenged brethren. Bee secure: Honeybees are being trained to sniff bombs. Really. Read all about it in a press release from Los Alamos National Laboratory. Bees were […]

Amazing Facts

New Technology Visualizes Animals in the Womb

November 24, 2006

Many have seen the videos of human babies developing in the womb, but what do animals look like before birth? Rhiannon Edward began an article in The Scotsman with some glimpses: An unborn elephant, tiny but perfect in every way. A dolphin swimming in the womb, just as it will have to swim in the […]

Fossils

Wanted Dead or Alive: New Mammals

October 18, 2006

Do we know all our fellow mammals? Further research has uncovered new furry creatures, fur sure. Furthermore, some are dead and some are alive and well: Weird Tooth: An “ancient mammal that defies classification” has been given a name, at least. EurekAlert reported that Horolodectes sunae, found 30 years ago in Alberta, remains a mystery: […]

Amazing Facts

Whiskers Inspire Technology

October 4, 2006

The latest gadget on robots or Mars rovers could be whiskers. These tactile sensors provide ways to see in 3D, says a report on National Geographic News. Information about latitude, longitude and elevation can be gleaned from whiskers. Rodents continually rotate their whiskers to gather information, but seals and sea lions let the ocean currents […]

Early Man

Should Elephants and Lions Be Reintroduced to North America?

October 2, 2006

Believe it or not, some scientists think large mammals that existed in North America in prehistoric times should be brought back. This is called “rewilding,” in hopes of healing some of the ecological disruption caused when early humans “played a significant role in their demise 13,000 years ago.” A dozen scientists provided a detailed proposal […]

Genetics

Voles Throw Evolutionary Genetics Into Disarray

September 16, 2006

What is it with voles? These little gopher-like furballs with beady eyes, short tails and tiny ears are giving evolutionary geneticists fits. A press release from Purdue University states, “Purdue University research has shown that the vole, a mouselike rodent, is not only the fastest evolving mammal, but also harbors a number of puzzling genetic […]

Genetics

Do Mammals Depend on Virus Help?

September 12, 2006

Researchers found that sheep depend on a retrovirus to become pregnant. Retroviruses (those that can insert themselves into a genome of a host cell) include the dreaded HIV and generally have a bad reputation. Remnant retroviruses are prevalent in many animal species and have been considered a class of “junk DNA,” having mutated away their […]

Dumb Ideas

Can Evolution Run in Reverse?

August 7, 2006

Evolutionists in Utah are claiming to have run the evolutionary tape in reverse, says the BBC News: “US researchers have taken a mouse back in time some 500 million years by reversing the process of evolution.” How can this be? By engineering its genetic blueprint, they have rebuilt a gene that was present in primitive […]

Amazing Facts

Eye Sends Information at Ethernet Rates

July 27, 2006

Neuroscientists from Pennsylvania and New Jersey calculated the information rate of the eye. Using guinea pigs (real guinea pigs, not humans as guinea pigs), they came up with a number and interpolated it for humans: In the classic “What the frog’s eye tells the frog’s brain,” Lettvin and colleagues showed that different types of retinal […]

Fossils

Bear Tooth DNA Yields New Date Record: 400,000 Years

July 22, 2006

According to a story posted on Yahoo News, Swedish scientists found intact DNA in a bear tooth claimed to be 400,000 years old. The team leader remarked, “It is usually hard to find DNA that is older than 100,000 years, and work on fossilized DNA mostly focuses on material that is a few tens of […]

Dumb Ideas

Evolutionists Find Pegasus in the Gene Epic

June 26, 2006

When you conjure with genes, you never know what might appear. Japanese scientists, publishing in PNAS,1 tried to find evolution in mammalian retroposons and found an unexpected relationship. New Scientist explains: “You could call it a batty idea, but bats seem to be more closely related to horses than cows are.” “Despite the […]

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