Depending on Source, Stem Cells Can Kill or Heal

Stem cells continue to show promise for dramatic healings, but reporters don't always clarify what lived or died to produce the cells. Adult stem cells inhabit all living humans; embryonic or fetal stem cells require a human death.

The Ediacaran Era May Be a Flawed Concept

Before humans arrived, no strata came with "Ediacaran" stamped on them. Does this human-invented name have any real meaning? Does it tell time?

Evaluating the Chicxulub Impact Dinosaur Extinction Hypothesis

Science Magazine claimed the Mexican crater named Chicxulub is the smoking gun of the dinosaurs' demise, and the media fell in line. Are there reasons to doubt the story?

Was Charlemagne Protected from a Cosmic Disaster? A Carbon-14 Mystery

Tree ring data from the 8th century hint that a cosmic catastrophe was averted on the "privileged planet."

"Easy Does It" Evolution Credited with Anything and Everything

Reporters show remarkably little discernment about the limitations of natural selection, but scientists don't rebuke them.

Man Blamed for Living Fossil Extinction Threat

The chambered nautilus is on the decline, after 500 million years of survival from the world's greatest extinction events. Guess who's to blame.

Roots of a Dangerous Darwinian Doctrine Live On

Tie "survival of the fittest" to "larger brains are more fit" and what do you get?

Turning an Unevolved Horseshoe Crab Into a Darwin Showpiece

Horseshoe crabs are survivors by anyone’s measure; they have carried on their lives virtually unchanged, according to the standard evolutionary timeline, for 450 million years. This not only points to incredible stasis against alleged forces of evolution; it also means they have survived at least three global extinctions that evolutionary biologists and geologists say wiped out most other species. Not only that, the world has changed drastically since they allegedly evolved from who-knows-what arthropod ancestors – perhaps trilobites, that appeared in the Cambrian Explosion without ancestors. But the numerous, successful trilobites did not survive the global extinctions. Given these contradictory facts, how can the horseshoe crab possibly be an exhibit for evolution? A recent article shows how.

What Do Scientists Know About Prehistory?

Evolutionary biologists and geologists speak of events happening millions or billions of years ago as concrete facts. They are not observational facts, though; they are inferences from indirect evidence. Indirect evidence can often lead to different conclusions; in fact, some philosophers like Duhem and Quine argue for “under-determination of theory by data,” meaning that data can never converge to support just one theory. Some can demonstrate logically that there are an infinite number of theories that can explain a set of data. Evolutionary scientists counter that there are only one or a few that are reasonable (implying that theirs is among the limited set of reasonable ones). Recent discoveries that threaten to overturn past reasonable theories, though, cast doubt on their confidence.

Stretching Credibility in Evolutionary Stories

Improbable events happening numerous times; selective extinctions; voodoo phylogenetics – at what point do evolutionary explanations exceed the threshold of credibility a trusting public grants to the gurus of the culture, scientists?
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