Prosanta Chakrabarty: Clues to prehistoric times, found in blind cavefish
Prosanta Chakrabarty: Tropy prehistorii odnalezione dzięki ślepym rybom jaskiniowym
Prosanta Chakrabarty studies fish to help explain the evolution of human beings and our planet. Full bio
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długie, nudne słowo,
nauka ta jest ekscytująca,
wie, że YOLO to angielski skrótowiec od:
"you only live once,"
że mam tylko jedno życie,
what I always dreamt of doing:
o czym zawsze marzyłem:
and discovering new species.
i odkrywając nowe gatunki.
on caves for finding new species.
na nowych gatunkach jaskiniowych.
cavefish species out there.
nieodkrytych gatunków.
a lot about biology and geology.
o biologii i geologii,
around them have changed and moved
i przemieszczały się kontynenty.
tkwiąc w małych otworach.
the evolution of sight, by being blind.
informacji o ewolucji wzroku.
that are essentially the same as ours.
w gruncie rzeczy od naszych.
narząd wzroku,
a fish species starts to adapt
do ciemnego, zimnego środowiska jaskiń,
oczy oraz wzrok,
they lose their eyes and their eyesight
cavefish like this one here.
jak ta ryba jaskiniowa.
has evolved in a slightly different way,
rozwijał się w trochę inny sposób,
and biological story to tell us,
historię geologiczną i biologiczną.
when we find a new species.
gatunków jest tak ekscytujące.
we described, from southern Indiana.
pochodzący z południowej Indiany.
the Hoosier cavefish.
are cavefishes in Kentucky,
są ryby jaskiniowe z Kentucky,
when the Ohio River split them
gdy rzeka Ohio rozdzieliła je
these subtle differences
behind their blindness.
będącej przyczyną ich ślepoty.
that's super-critical for sight.
jest kluczowy dla wzroku.
tak samo jak u tych ryb,
all function in that gene,
stracił wszystkie jego funkcje,
natural experiment
behind our vision,
about deep geological time,
o odległych okresach geologicznych,
than in this species here.
we described from Madagascar
gatunek z Madagaskaru,
to collect this species.
próbując znaleźć te ryby.
full of dead things
pełnych martwych stworzeń
be doing with your life,
that it tried to kill us,
że próbował nas zabić,
this species in Madagascar,
tej ryby z Madagaskaru
are 6,000 kilometers away,
freshwater cavefish
słodkowodna ryba jaskiniowa
the DNA of these species
for more than 100 million years,
ponad 100 milionów lat temu,
continents were last together.
południowe były ciągle złączone.
didn't move at all.
these ancient geological events.
wydarzenia geologiczne.
to tell you its name yet,
jak się nazywa,
it's a new species from Mexico,
że pochodzi z Meksyku,
the only known cave system it's from
budowa pobliskiej tamy,
zamieszkały przez niego system jaskiń.
this species' closest relative, yet.
tego gatunku.
anything else in Mexico,
gdziekolwiek indziej w Meksyku.
something new about the geology
nam coś nowego o geologii Karaibów
of how to better diagnose
before it goes extinct too.
zanim i one wyginą.
życie jako ichtiolog,
trying to discover and save
about the geology of the planet
o geologii planety
ABOUT THE SPEAKER
Prosanta Chakrabarty - IchthyologistProsanta Chakrabarty studies fish to help explain the evolution of human beings and our planet.
Why you should listen
Dr. Prosanta Chakrabarty is an Associate Professor and Curator of Fishes at the Museum of Natural Science and Department of Biological Science at Louisiana State University.
Chakrabarty is a systematist and an ichthyologist studying the evolution and biogeography of both freshwater and marine fishes. His work includes studies of Neotropical (Central and South America, Caribbean) and Indo-West Pacific (Indian and Western Pacific Ocean) fishes. His natural history collecting efforts include trips to Japan, Australia, Taiwan, Madagascar, Panama, Kuwait and many other countries. He has discovered over a dozen new species including new anglerfishes and cavefishes.
The LSU Museum of Natural Science fish collection that Chakrabarty oversees includes nearly half a million fish specimens and nearly 10,000 DNA samples covering most major groups of fishes. He earned his PhD at the University of Michigan and his undergraduate degree is from McGill University in Montreal. He has written two books including A Guide to Academia: Getting into and Surviving Grad School, Postdocs and a Research Job. He is also a former Program Director at the National Science Foundation. He was named a TED Fellow in 2016 and a TED Senior Fellow in 2018.
Prosanta Chakrabarty | Speaker | TED.com