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Charles Darwin - Blog Posts

Me reading Darwin's On the Origins of Species in a desperate attempt to study for my Midterm that's tomorrow:

"Ha. He said cock."


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4 years ago
I Hope You Will Enjoy This Halloween Special. Today, We Are Trying Something A Little Bit Different By
I Hope You Will Enjoy This Halloween Special. Today, We Are Trying Something A Little Bit Different By
I Hope You Will Enjoy This Halloween Special. Today, We Are Trying Something A Little Bit Different By

I hope you will enjoy this Halloween special. Today, we are trying something a little bit different by exploring the evolution of a particular animal : Bats.

While their evolutionary history is shrouded in mystery, they allow us, nonetheless, to explore 2 interesting ideas :

1- Convergent evolution : How organisms tend to evolve similar (albeit not identical) body plans as solutions to similar problems (flight in birds, bats and pterosaurs)

2- Prediction : Like any theory, evolution is not only descriptive, but also predictive. Thanks to its models and principles, it allows us to make predictions to complement our gap in observational data.

Happy Halloween!

P.S. : The blog in the third picture is neither scientific nor peer-reviewed. But it is a nice illustration of how the common ancestor of bats MIGHT have looked like, and how using basic principles from evolution, phylogeny, and comparative anatomy, we can visualize how some animals have come to be what they are.


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12 years ago

"Pouco se fala nessa ciência, mas na realidade somos diariamente confrontados com essa técnica através dos meios televisivos. Expostos, denunciados pelo zoom, qualquer olhar, postura, gesto ou tom de voz diz mais sobre o que somos e pensamos do que um elaborado discurso. Pode parecer ficção aos olhos de muitos, vidência para muitos outros, mas é uma temível ciência muito procurada por figuras públicas (normalmente ocupantes de posições mediáticas elevadas). Nenhum disfarce resiste ao escrutínio dos (verdadeiros) especialistas. No fundo, se é possível fazer uma leitura correta desse conjunto de códigos, a sua escrita torna-se então possível. Isto é, entender essa mecânica a partir das fontes naturais permite-nos trabalhar nela de forma artificial, limando, subtraindo ou acrescentando. Porém isso não é assim tão fácil. O resultado fica largamente dependente das capacidades reais do analista tratante e das capacidades de adaptação de quem procura estes serviços. Modificar tendências naturais e/ou controlar impulsos não está ao alcance de todos. O tratamento pode ser extremamente violento e penoso. Quer se trate de um artista, político ou futebolista, existem indivíduos cuja mecânica natural não permite grandes manobras..."


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8 years ago
The Surprising Psychology of Smiling
Natural or fake, each smile tells you something important about its wearer.

(Some science of smiling, certainly not another "how to read (and fake) a smile" article)

“The “science of smiling” as such was initiated by Charles Darwin. He noticed that the cause, consequences and manifestations of smiling is universal whereas many other nonverbal of body language behaviors (like gestures or touch) differ between cultures and are therefore probably learnt. Babies born blind smile like sighted infants. We begin smiling at five weeks: babies learn that crying gets attention of adults but smiling keeps it.“


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