Endothermy, i.e. the endogenous production of metabolic heat, has evolved multiple times among vertebrates, and several strategies of heat production have been studied extensively by…
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Published 17th February 2020
Stuffhappens.info Posts
Published 11th February 2020
Repeated evolution of compound eyes: one of two seemingly very unlikely evolutionary histories must be true
From PNAS.ORG: These results illustrate exactly why arthropod compound eye evolution has remained controversial, because one of two seemingly very unlikely evolutionary histories must be…
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Published 3rd February 2020
Repeated evolution: The same retroviral gene coopted independently by unrelated species to aid reproduction
… in other words: a species gets infected by a virus, the virus inserts a part of its own viral-DNA into the species genome. Later…
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Published 16th January 2020
Repeated evolution: Complex brains and high intelligence evolved many times independently
… yes, that miracle happened not once, but many times…independently … it seems that most miracles happen in biology … over and over again ……
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Published 6th January 2020
Repeated evolution: A fish living on land is NOT an extraordinary thing but a common phenomenon
Get this: Fish have evolved the ability to live on land many times, challenging the perception that this extreme lifestyle shift was likely to have…
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Published 21st August 2019
Repeated evolution: from egg laying to live-birth and then back to egg laying. Lizards re-evolved laying eggs multiple times
Stuff happens … over and over again … A family of lizards has achieved something very unexpected, evolving to give birth to live young, before going…
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Published 14th August 2019
Repeated evolution of placenta: at least 100 independent origins across the animal kingdom
First off, let me start with some quotes from mainstream-articles: The placenta is arguably the most important organ of the body, but paradoxically the most…
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Published 28th July 2019
Repeated evolution: Despite its great advantages, photosynthesis lost multiple times in diverse organisms
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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