Lauren Sallan: How to win at evolution and survive a mass extinction
لورين سالان: كيف تنجح في التطور والبقاء خلال الانقراض الجماعي
TED Fellow Lauren Sallan is a paleobiologist using big data analytics to reveal how macroevolution, or evolution happens at the largest scales, happens. Full bio
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greatest winners --
four billion years in the making.
سنة في طور التكوين.
who have ever lived,
في أي وقت مضى،
وشدة البرودة، والحرارة
of golden opportunities
of your co-winners and relatives.
المشاركين وأقاربهم.
who uses big data --
والتي تستخدم حقائق كبيرة
and others lose.
of beautiful fish fossils,
من أحفوريات أسماك متعددة،
number of ugly, broken fossils,
من حفريات قبيحة مكسورة،
for evolutionary patterns.
سنة للأنماط التطورية.
major pathways of change
of the winners and losers
I discovered using fossil data.
باستخدام البيانات الإحفورية.
as the last dinosaur --
with razor-edge jaws dominated
بفكوك حادة الأطراف
with arm bones in their fins.
across the sea floor.
of salmon and tuna
من السلمون والتونا
lived offshore in fear.
من الشاطئ في خوف.
the tetrapods,
359 million years ago:
and swept away.
that's the end of the story.
the meek inherited the earth,
came from many groups --
to bottom-feeder,
إلى أسفل المتغذيات،
over the next several million years
خلال عدة ملايين سنة
should have had an advantage.
and biding their time.
ويقضون وقتهم.
sharks and four-legged tetrapods
القرش ورباعي الأرجل (تيتربودوس)
dying young,
and reproducing rapidly.
and weird bodies.
for their 60,000 living species,
evolutionary pathways.
للمسارات التطورية.
repeat across time.
النصر والهزيمة عبر الزمن.
upon thousands of dead fishes,
آلاف مؤلفة من أسماك ميتة،
through mass extinction,
will not just replace what was lost,
ABOUT THE SPEAKER
Lauren Sallan - PaleobiologistTED Fellow Lauren Sallan is a paleobiologist using big data analytics to reveal how macroevolution, or evolution happens at the largest scales, happens.
Why you should listen
Lauren Sallan uses the vast fossil record of fishes as a deep time database, mining to find out why some species persist and diversify while others die off. She has used these methods to discover the lost, largest, "sixth" mass extinction of vertebrates; the end-Devonian Hangenberg event (359 million years ago), reveal how fish heads changed first during their rise to dominance; test why some species thrive after global disruptions while others flounder; and show how invasions by new predators can shift prey diversity at global scales.
Sallan is the Martin Meyerson Assistant Professor in Interdisciplinary Studies at the University of Pennsylvania, based in the Department Earth and Environmental Science, and became a TED Fellow in 2017. Her research has been published in Science, PNAS and Current Biology. It has also been featured in the New York Times, The Chicago Tribune, Forbes, the New Scientist, the Discovery Channel and the recent popular science book, The Ends of the World by Peter Brannen.
Lauren Sallan | Speaker | TED.com