Prosanta Chakrabarty: Four billion years of evolution in six minutes
Prosanta Čakrabartijs: Četri miljardi gadu evolūcijas sešās minūtēs
Prosanta Chakrabarty studies fish to help explain the evolution of human beings and our planet. Full bio
Double-click the English transcript below to play the video.
why are there still monkeys?
kāpēc joprojām sastopami pērtiķi?
and not a monkey
to understanding where we came from.
no kurienes esam cēlušies.
evolutionary biology classes in the US,
evolucionārās bioloģijas kursiem ASV,
why I call them fish all the time,
kāpēc es tos visu laiku saucu par zivīm,
by dispelling some hardwired myths,
ar dažu iesīkstējušu mītu kliedēšanu,
many of us were taught evolution wrong.
no mums evolūcija mācīta nepareizi.
to say "the theory of evolution."
teikt „evolūcijas teorija”.
and just like the process itself,
un gluži tāpat kā pats process
are the ones that survive to this day.
ir izdzīvojušas līdz mūsu dienām.
is Darwinian natural selection.
Darvina dabiskā izlase.
that best fit an environment
vislabāk pielāgojušies organismi
slowly die off.
and it's a fact.
un tā ir fakts.
as much as the "theory of gravity."
kā „gravitācijas teorija”.
with other placental mammals,
ar citiem placentāļiem,
with other vertebrates,
kopīga ar citiem mugurkaulniekiem,
with all other life on earth.
ar visu pārējo dzīvību uz zemes.
from different ancestors
visiem saviem pēcnācējiem, ne tikai mums.
how we learn biology early on, is it?
mēs bioloģiju neapgūstam, vai ne?
are primitive things,
un baktērijas ir primitīvas formas,
followed by reptiles and mammals,
tiem sekojuši rāpuļi un zīdītāji,
at the end of the line.
rindas galā.
portrayed something like this,
ataino apmēram šādi:
to becoming us.
lai kļūtu par mums.
any more than we would become them.
tieši tāpat kā mēs nekļūstam par viņiem.
evolution the right way?
has led to many problems,
pie daudzām problēmām,
no kurienes esam cēlušies, nevar uzdot,
evolution the right way.
to many convoluted and corrupted views
pie samezglotiem un kļūdainiem skatījumiem
other life on earth,
pret pārējo dzīvību uz zemes
vienam pret otru,
we all came from.
no kura esam cēlušies mēs visi.
to other single-celled life,
vienšūnas dzīvības formas,
arī mūsdienās,
the Archaea and Bacteria
to be here well after us.
ilgi pēc tam, kad mūsu vairs nebūs.
multicellularity evolved.
attīstījās daudzšūņi,
and your plants and your animals.
a backbone were fishes.
mugurkauls, bija zivis.
all vertebrates are fishes,
visi mugurkaulnieki ir zivis,
iznāca uz zemes,
the mammals and reptiles.
zīdītāji un rāpuļi.
some mammals become primates,
daži zīdītāji – par primātiem,
including a variety of human species.
tostarp dažādām cilvēku sugām.
cēlušies no pērtiķiem,
a common ancestor with them.
around us kept evolving:
turpināja attīstīties –
lots of fish, fish, fish.
daudzum daudz zivju, zivju, zivju.
yes, they're my favorite group.
jā, tā ir mana mīļākā grupa.
for a few million years.
vien dažus miljonus gadu.
that we see around us today
mūsdienās sastopamo dzīvības formu
it's self-centered to think,
ir egocentriski domāt,
for an evolutionary minute,
mēs šeit esam bijuši minūti,
an unfinished book for sure.
pavisam noteikti nepabeigtu.
few pages of each chapter.
dažas pēdējās lapas.
on the eight million species
four billion years of evolution.
četri miljardi gadu evolūcijas.
on this ancient and gigantic tree of life,
senā un milzīgā dzīvības kokā –
not just to each other,
ne tikai vienu ar otru,
and our evolutionary ancestors.
un evolucionārajiem senčiem.
trying to learn, with others,
kopā ar citiem mēģinu noskaidrot,
who is related to whom.
kurš kuram ir rada.
as a little fish out of water.
kā no ūdens iznākušas zivtiņas.
staigāt un runāt,
a lot of learning to do
un no kurienes esam cēlušies.
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