Category: speciation

Is “species” an empty concept now?

Maybe the world is so fuzzy below the level of the genus that another approach to classification should be sought (and why that won’t happen soon). more

One bat species turns out to be seven

Don’t forget how much of the whole concept of a “species” is obscured and vitiated by the hunt for observed Darwinian speciation. more

Deep sea fish uses tripod to “stand”

So why use the word “evolved” at all? So we can pretend to know stuff we don’t? more

Seems not even Darwin’s finches are sacred

As David Tyler writes over at Access Research Network: Introgressive hybridization and the Galapagos finches A branching pattern of variation was central to Darwin’s concept of speciation. As one population of organisms follows one trajectory, another population may spin off in a different direction. When they are sufficiently far apart, they are considered to be […] more

New study finds little evidence for key Darwinian doctrine

Character displacement is “one of the main Darwinian ideas for explaining why species are different” more

Science news release admits evidence for speciation “implicit in Charles Darwin’s work” is scarce

In short, it is unclear, even in this fairly straightforward case, that Darwinian speciation has actually occurred. Circumstances have been spotted under which it might be occurring. Of course, some perturbation in the landscape might blow it all away. more

News from a “Cathedral of Biology”

Bird malaria has hit the Galapagos, and may affect Darwin’s finches. As it happened, Darwin contributed little to the study of finches beyond their name. In the context of a cathedral dedicated to him, that cannot of course be spelled out. more

This beats our jelly frites: Huge, previously unknown jellyfish washes ashore

And remember, 95% of the ocean is … unexplored. Never mind outer space. Think under space. more

Further from the “clades diverge early” paper…

In short, a life system gets started with a certain early potential, runs its course, becoming more inflexible over time, and then fades out – like most human institutions. more

New PNAS paper: Large, related groups of animals diverge from each other quite early in their evolution

Not the long, slow process advocated by Darwin’s followers.* This has long been known, if course, it just gets conveniently buried in the “We’re working on it” pile, lest anyone ask more basic questions. One burial method is obfuscated prose. more

Neanderthal virus turns up in modern humans with cancer

Take home point: Humans today can differ significantly in the non-coding areas of their genomes. Maybe we know too little to know so much? more

Mystery human species unearthed from genome map of early humans?

“Species” interbreeding as readily as this? Conveniently, there are many definitions of “species” so the term can be flung around with abandon, provided one has the right credentials. more

Small size, large populations, make species formation difficult?

Self-organized pattern formation proposed instead. This op-ed may be a way of opening a sustained, long-overdue discussion of just what relevance “species” has in many situations. more

sRNA for Quorum Sensing: Evidence for CSI?

Bacteria demonstrate intra-species communication that is species specific using a partner with a communication molecule. Bacteria are also “multilingual” with a generic trade language for interspecies communication. Bacteria control tasks by signal producing and receiving receptors with a signal carrier. The tasks bacteria conduct depend on the concentration they sense of self bacteria versus generic […] more

Ants more closely related to most bees than to most wasps?

So they say here: “Despite great interest in the ecology and behavior of these insects, their evolutionary relationships have never been fully clarified. In particular, it has been uncertain how ants—the world’s most successful social insects—are related to bees and wasps,” Ward said. “We were able to resolve this question by employing next-generation sequencing technology […] more

Could songbirds have borrowed DNA to fuel migration?

If so, genetics is not what we thought. Which sheds an askew light on what kids should be taught in school. How much do we really know that we want passed on as orthodoxy? more

Researchers: New species do not result from keeping animals apart?

If that’s true, it is a polite way of saying that most of the Darwinian evolution advocacy your taxes have paid for did not advance knowledge. All those court cases, all that persecution of dissenters. Oh well, ‘twas ever thus. more

Common descent? Universal common descent? What the diff?

The sheer unlikelihood of life coming to exist at all is not an argument for universal common descent; it is an argument for a non-random origin of life. more

Raccoon-like carnivore, olinguito, “found”

“… its keepers were mystified as to why it refused to breed with its peers. ” — Because only the animal knew that they weren’t “peers.” more

Three dinosaur species turn out to be one

The findings also illustrate the risks of large, general conclusions from a few apparently randomly preserved fossils. more

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