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Space Jam Is An Isekai

@bonediggercharleston / bonediggercharleston.tumblr.com

male, bi, 30, paleontologist and animation fan, guitarist
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doubleca5t

the lesson I'm taking away from this election is not that the Democrats need to become more left wing or more right wing but moreso that they need to find a way to cater their rhetoric towards people who genuinly have no idea what is going on. the target audience for every speech and political appearance should be someone who doesn't know what the three branches of government are because they were drawing a Cool S during high school civics

political scientists have failed to consider the possibility that the silent majority is silent because they didn't understand the question and are trying to play it cool

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So many people have brought up this PBS Eons video on squid fossils and it seems to have left a lot of people confused.

We do have fossils of squid. Mostly, of their chitinous hard-parts, such as the hooks on their arms, or their beaks. Squid are not entirely soft-bodied, so even without soft-tissue fossilisation, we would (and do) have evidence of their existence.

We do not have many soft-tissue fossils, at least not of things that are 100%, indisputably squid, but we DO have some. Decay And Fossilization of Non-Mineralised Tissue in Coleoid Cephalophods by Amanda J. Kear is just one paper that lists soft tissue preservation in coleoids including some true squid.

There is also some debate as to what, exactly, is a 'true squid'. Belemnitida seems to bounce in and out of Decapodiforms, which seems to be what is generally agreed to be the superorder which the term “squid” refers to. If they are Decapodiforms, then we have a bunch of squid soft tissues - if they're not, we have a lot less.

PBS Eons was also referencing a paper which mentions phosphatisation of coleoids, however this doesn't seem to address other soft-tissue preservation modes such as impressions and shadows. Solnhofen for example shows soft tissue impressions of squid-like species though, again, it is debated as to whether they should be classified as squid.

Additionally, the end of the PBS video concludes that it is not impossible that we may yet find more soft-tissue preservation of squid! They mention this is reference to a soft-tissue ammonite fossil, which was previously completely unknown. This is pretty common in palaeontology; we thought that feathers would never fossilise once, but look where we are now!

So don't worry guys - we do have squid fossils! They are not completely absent from the fossil record, and they won't be in the future.

Now, cacti, on the other hand.....

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demilypyro

nah i am punching the bad thoughts away like an epic anime protagonist. they can't defeat me. i will save this world

it's not manic depression it's me reaching the next level of my shonen power set

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