I’ve been seething and grieving since yesterday’s Friday Night Massacre of NIH overheads, a seeming bit of bureaucratic trivial that will in fact destroy the US university system if unchecked. But I want to get away from budgets and rate breakdowns and F&A percentages for a moment.
Humor me?
From the time I was seven years old, I have wanted to be a scientist. The wonders of the universe, the delights of biodiversity, the cryptic secrets of number theory — I fell in love with these worlds and marveled that there was a role in our society for people who worked to uncover and share them.
Science, I realized, gave us superpowers. We evolved sensory capabilities consistent with our physical scale and temporal experience. But with science, we can understand what happened in the femtoseconds after the Big Bang, the molecular basis of inheritance, time dilation at the edge of a black hole, a 4 billion-year story of life on earth.
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Zoe
in reply to myrmepropagandist • • •Adam S. Smith
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ubi
in reply to myrmepropagandist • • •neville park
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in reply to neville park • • •llewelly
in reply to myrmepropagandist • • •1/2 I'm not a biologist, but
when I hear "basal", I imagine a family tree of the group including the basal group, and imagine the "basal" to branch off near the base of the group in which it is contained.
so, for example, if someone says "Eodromaeus was a basal theropod" I imagine a tree something like this:
en.wikipedia.org/wiki/Theropod…
and you can see in that tree Eodromaeus branches off near the base. Pigeons, on the other hand, are a highly derived group of theropods.
clade of dinosaurs
Contributors to Wikimedia projects (Wikimedia Foundation, Inc.)Lena
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Jerry D. Harris 🦕👣
in reply to myrmepropagandist • • •myrmepropagandist
Unknown parent • • •Zoe
in reply to myrmepropagandist • • •@astory evolution occurs in two steps. Genetic drift, and natural selection. When the gen pool contacts it may center on the same position again, assuming a local maximum has been found. The gen pool will only centre around a new position if their exist a better fit for the environment.
Of course the world is more complicated then the models I base the above assertion on.