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Natural Selection:

Acting for the survival of the species (a falsehood)

Category: Falsehoods

As the mother cougar approached the flood and all hope seemed to diminish, the narrator said "The mother cougar, driven by an instinct to save her species, searched desperately for any sign of the third kitten, who represented the next generation of cougars."

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The Modes of Natural Selection

Category: Evolution

There many ways of dividing up and categorizing Natural Selection. For example, there are the trichotomies of Natural Selection, Sexual Selection and Artificial Selection, and Modes of Selection (Stabilizing, Directional, and Disruptive) trichotomy. We sense that these are good because they are "threes" and "three"...

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The Three Necessary and Sufficient Conditions of Natural Selection

Category: Natural Selection

Natural Selection is the key creative force in evolution. Natural selection, together with specific histories of populations (species) and adaptations, is responsible for the design of organisms. Most people have some idea of what Natural Selection is. However, it is easy to make conceptual errors...

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Humans are no longer subject to Natural Selection (A falsehood)

Category: Falsehoods

Another look at falsehoods about evolution....

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The Natural Basis for Inequality of the Sexes

Category: Anthropology

Is the Natural World a valid source of guidance for our behavior, morals, ethics, and other more mundane areas of thought such as how to build an airplane and what to eat for breakfast?1 When it comes to airplanes, you'd better be a servant to...

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Darwin and Wallace 1858

Category: A.R. Wallace

Darwin and Wallace, chillin' Let's talk about Darwin and Wallace's joint presentation on Natural Selection in 1858. It is not usually the case that I write a blog post for a carnival. I usually just write for the blog, then now and then sit...

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Mail Order Brides and Hypergyny

Category: Anthropology

I've noticed that Scienceblogs.com has been running ads for hot Russian mail order brides. These ads are rather funny ...

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BBC: DNA mutations followed by selection does not lead to new species!?!?

Category: Natural Selection

In an BBC article describing a Royal Society paper on the rate of mutation in warm vs. cooler climates, the BBC made this statement: DNA can mutate and change imperceptibly every time a cell divides and makes a copy of itself. But when one of...

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Ultimate Causes, Proximate Mechanisms

Category: Evolutionary Biology

Why does a soldier throw himself on a hand grenade to save the lives of a half-dozen unrelated fellow soldiers? Why does someone run into a burning building they happen to be passing to save a child they don't know? From a Darwinian perspective these...

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Diatoms Large and Small

Category: Evolution

Diatoms are algae with hard parts. They make up a major part of the plankton found in fresh and salt water environments. Usually, diatoms exist as single celled free floating organisms, but they can also be colonies of several single cells. Their tiny little 'shells'...

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