It is not easy to understand how natural selection works … Shining Sun – is there any cheaper source of energy ? Despite the great…
Comments closedMonth: July 2019
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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