callimico's posts on decentralized web

callimico

@callimico

Danish biology student with a passion for animals, language learning and musical composition among other things

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2018-03-13 10:40

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callimico

science

2018-03-22 16:43

New series: Pain in animals

Just last month, Switzerland became the first country in the world to ban the practice of boiling lobsters alive. But do lobsters even feel pain? In my upcoming posts, I will talk about pain in animals,

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callimico

math

2018-03-20 17:09

Alternative approach to subtractions

Consider the following calculation: In elementary school, I was taught to solve this kind of problem by borrowing tens to fill in the missing ones, hundreds to fill in missing tens and so on: This method

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callimico

science

2018-03-17 10:31

How to draw an evolutionary tree II: maximum parsimony

In my previous post, I described how to use the algorithm UPGMA to construct an evolutionary tree from a distance matrix. It was fast and straightforward, but we had to make the assumption that evolution

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callimico

science

2018-03-16 07:14

How to draw an evolutionary tree: UPGMA

In my first post, I explained how to read a phylogenetic tree, a tree depicting the relationship between different taxa, i.e. groups of organisms. In my second post, I explained what data forms the basis

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callimico

science

2018-03-15 06:47

How to compare two DNA sequences by hand - the Needleman-Wunsch algorithm

First of all, no sane person working in bioinformatics would spend time comparing DNA sequences by hand with all the fast digital tools available (here's one). Still, any bioinformatician would do well

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callimico

science

2018-03-14 10:59

Why we trust in DNA to tell us how organisms are related

All organisms living on the planet today are thought to originate from a single ancestral organism. It’s an extraordinary claim, but it’s backed up by the extraordinary fact that all organisms are

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callimico

science

2018-03-13 16:38

Why you're more closely related to a salmon than a salmon is to a shark - understanding phylogenies

Hi there! This is my first Steemit post so I would like to introduce myself briefly. If you can’t wait to read more about your relationship with fish, just skip the next paragraph. I come from Denmark.

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