It is not easy to understand how natural selection works … Shining Sun – is there any cheaper source of energy ? Despite the great…
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Published 10th July 2019
Repeated evolution: Striated muscles in cnidarians and bilaterians evolved independently
what is left of common ancestry ? Striated muscles are present in bilaterian animals (e.g. vertebrates, insects, annelids) and some non-bilaterian eumetazoans (i.e. cnidarians and…
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Published 8th July 2019
Key evolutionary innovation lost 1000 times! The ability of flight lost repeatedly in the vast majority of insect orders
Let me repeat that: Evolutionary biologists claim, that after insect-species evolved the key evolutionary innovation – the ability of flight – then the ability got…
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Published 3rd July 2019
Repeated evolution: air bladders or lungs in different groups of fishes evolved multiple times
Stuff happens …. Several times throughout their radiation fish have evolved either lungs or swim bladders as gas-holding structures. Lungs and swim bladders have different…
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Published 2nd July 2019
Repeated evolution: Appendix evolved more than 30 times!
The appendix may not be useless after all. The worm-shaped structure found near the junction of the small and large intestines evolved 32 times among…
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Published 1st July 2019
Repeated evolution: Sex chromosomes evolved independently, many times, in various species
Sex chromosomes evolved not once, but many times, independently … stuff happens … Sex chromosomes are derived from autosomes and have evolved independently many times…
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Published 23rd June 2019
Repeated evolution: Penis-baculum evolved multiple times and have been lost multiple times
Several hypotheses for the function of the baculum have been proposed which lead to testable predictions in a comparative framework. Unfortunately, comparative studies have failed…
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Published 14th June 2019
Repeated evolution of blood types
interesting stuff happened here … or perhaps not ? The ABO histo-blood group, the critical determinant of transfusion incompatibility, was the first genetic polymorphism discovered…
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Published 14th June 2019
Evolution does repeat itself after all: How evolution lets stripes come and go
same stuff happened multiple times, independently in various lakes, and at a record speed … Evolution does repeat itself after all: How evolution lets stripes…
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Published 13th June 2019
Repeated evolution: Lactose tolerance arose independently in Africans and Europeans
In January 2007, an international team of researchers led by geneticist Sarah Tishkoff announced that they had uncovered the genetic roots of Africans’ lactose tolerance.…
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