Intelligent Design speciation

Bird, tested and released, turned out to be a hybrid of three species

From ScienceDaily: Scientists have shown that a bird found in Pennsylvania is the offspring of a hybrid warbler mother and a warbler father from an entirely different genus — a combination never recorded before now and which resulted in a three-species hybrid bird. This finding has just been published in the journal Biology Letters. “It’s […]

Darwinism Evolution Intelligent Design speciation

Addressing the speciation mess: View species as models?

The abstract of a new paper, “Species as Models” by Jun Otsuka of Kyoto University (PhilSci Archive, 2018): This paper argues that biological species should be construed as abstract models, rather than biological or even tangible entities. Various (phenetic, cladistic, biological etc.) species concepts are defined as set-theoretic models of formal theories, and their logical […]

Genomics speciation

World’s simplest animals as different from each other as humans and mice

The world’s simplest animal is trichoplax adhaerens. It is so simple that researchers wisely decided to forego the venerable Biological Species Concept that depends on an animal’s form (tricoplax doesn’t have much of a form) and just use genetics. But when evolutionary biologist Michael Eitel sequenced the genomes of several thousand of them, he was […]

Darwinism Genomics Intelligent Design speciation

New goal: 66k animal genomes mapped

Earlier this month, 15 genomes were released. The Vertebrate Genomes Project aims to sequence every extant vertebrate species—there are about 66,000—and to make them of the highest possible value. … “What we thought was a ‘genome’ back [when G10K was launched] really wasn’t suitable for in-depth studies,” G10K cofounder David Haussler, a computational biologist at […]

Human evolution Intelligent Design speciation

A physicist looks at biology’s problem of “speciation” in humans

Consider this item on the recent find of the remains of a girl from 90,000 years ago: The discovery of the first-known offspring of parents from two different hominin species took scientists by surprise. While evidence has been pointing to interbreeding among the ancestor species of modern humans, the direct link is being hailed as […]

Evolution speciation

Claim: Hybridization “boosts evolution” in cichlids

From ScienceDaily: Animals that have either migrated to or been introduced in Central Europe — such as the Asian bush mosquito or the Asian ladybeetle — feel extremely comfortable in their new homes due to changing climatic conditions. If these newcomers are genetically compatible with local species, they may crossbreed and produce hybrids, which can […]

Culture Darwinism Evolution speciation

Is the recently cited hybrid dolphin-whale a “new species”? No.

The concept of speciation in general is a huge mess (see links below), principally because it is taken as confirmation of explicitly Darwinian evolution (you know, On the Origin of Species and all that… ). It’s the same sort of problem as when a religious sect seeks to confirm a miracle. They degrade the definition and damage the concept.

Intelligent Design speciation

Speciation: A bread yeast and a yeast that causes infections turn out to be the same “species”

From Sukanya Charuchandra at The Scientist: Two species of yeast, one of which is used in the biotechnology and food industries to make bioethanol and sourdough bread, while the other causes yeast infections, have been found to be one and the same, according to research published in PLOS Pathogens today (July 19). And, the researchers […]

Genetics Intelligent Design speciation

Monkeys more closely related to sister species than same species in different locations?

The “biological species concept” is yet another textbook dead zone. From ScienceDaily: Dr Addisu Mekonnen and colleagues at The University of Oslo, Norway, looked at the genetic diversity of the two populations of Bale monkeys. Analysis of mitochondrial DNA suggested strong genetic differences between the Bale monkeys who lived in continuous forests or fragmented forests. […]

Evolution Genomics Intelligent Design speciation

Study: Species are “compact clusters in the vastness of empty sequence space.”

Yesterday, PaV drew our attention to this story from Marlowe Hood at Sweeping gene survey reveals new facets of evolution Here’s another swatch from it, of interest: “another unexpected finding from the study—species have very clear genetic boundaries, and there’s nothing much in between. “If individuals are stars, then species are galaxies,” said Thaler. […]