David Gruber: Glow-in-the-dark sharks and other stunning sea creatures
David Gruber - Marine biologist, explorer-photographer
David Gruber searches the undersea world for bioluminescent and biofluorescent marine animals. Full bio
and an explorer-photographer
crying in the back
looks more like this.
is this massive filter,
and blue very quickly.
we're terrestrial mammals.
of bringing color underwater,
with Bill Longley and Charles Martin,
the first underwater color photograph.
with old-school scuba suits,
of high-explosive magnesium powder,
at the surface are not sure
when they've got their frame in focus,
of high explosives would go off
a little bit of light underwater
like this beautiful hogfish.
but this is not real.
our own addiction to color.
what we've been finding
underwater with us,
for millions of years
to take in that blue light
of what this secret world looks like.
is blue light hitting this image.
is 71 percent of the planet,
to almost a 1,000 meters.
all the red is gone.
under 10 meters that's red,
and creating its own red.
blue environment on our planet.
of biofluorescence begins with corals.
a full TED Talk on corals
one of their miraculous feats,
up to 14 percent of its body mass --
14 percent muscle and not using it,
that has a functional role.
this was so special to me,
to be one of the most revolutionary tools
to better see inside ourselves.
we swim at night.
duct-tape filters over my strobe,
I'm actually seeing the light
for the Museum of Natural History,
the fluorescent corals are on the reef,
that just blew me away:
a green fluorescent fish
checking the filters,
playing a joke on us with the camera,
fluorescent eel that we found,
my trajectory completely.
interesting than corals,
the way that I was photographing it,
that would magnify the fluorescence.
around the world,
with this blue light,
and transferring this back to us.
our photobombing Kaupichphys eel.
that we know almost nothing about.
of their time hidden under a rock.
under full-moon nights,
translates underwater to blue.
as a way to see each other,
for the next long stint of time.
other fluorescent marine life,
along its head and its nape,
and fluorescing at the same intensity
it's either on red fluorescent algae
green fluorescent lizardfish.
under white light.
under fluorescent light,
the differences among them.
this last year --
of biofluorescent fish.
and biologist Jean Painlevé.
creative spirit in biology.
make his own cameras,
the seahorse giving birth.
to start swimming upright
on his head that would shock him,
that he was studying.
and not see the seahorse.
which would also fluoresce red,
this long mating ritual,
in that effect.
fluorescence in the stingray,
in the Elasmobranch class,
to see if the sharks are fluorescent.
go back to corals."
are not fluorescent.
off the coast of California,
It's called a swellshark.
because if they're threatened,
and blow up like an inner tube,
so they don't get eaten by a predator.
of these biofluorescent swellsharks.
they're showing these distinct patterns,
and areas that are not fluorescent,
twinkling spots on them
than other parts of the shark.
about this shark's vision.
Ellis Loew at Cornell University,
sees discretely and acutely
than we can see in the dark,
is taking this blue world
that they can indeed see.
for them to see all these patterns.
also have, we're finding,
a few miles from where we are now,
the first biofluorescent sea turtle.
and sharks into reptiles,
that we know almost nothing
how much more there is to learn.
breeding females of this species left,
to really protect these animals
and understand them.
to the bottom of the ocean?
and we equipped them
on the front here.
down there, below 1,000 meters --
are actually making their own lights
submarine suit --
meets Woody Allen" moment.
interact with life delicately?
a new age of exploration,
how we explore.
at Harvard University,
squishy underwater robot fingers,
with the marine life down there.
to explore the deep ocean
caring to be gentle.
and crush them with a big claw.
a lab in the front of my submarine,
and putting things in jars,
of fluorescent marine creatures,
and see its connections.
our own human intuition,
Vincent Pieribone at Yale,
a fluorescent protein
when a single neuron fires.
a portal into consciousness
to perspective and relationship.
like a human brain cell,
marine creatures and cells
that with illuminated minds,
interconnectedness of all life,
About the speaker:David Gruber - Marine biologist, explorer-photographer
David Gruber searches the undersea world for bioluminescent and biofluorescent marine animals.
Why you should listen
Marine biologist, ocean explorer and professor David Gruber is providing a wealth of new insights into a secret "language" of shining colors and patterns that help many marine creatures communicate, interact and avoid enemies. He and his collaborators have illuminated and discovered novel fluorescent molecules from numerous marine animals and are working at the interface between glowing sea life and the ability to visualize the inner workings of human cells.
His research group at City University of New York and the American Museum of Natural History has deciphered the genome of scores of new fluorescent proteins, which are being developed as tools to aid in medical research and illuminate biological processes. On land, his team designs submersibles and other technologies to revolutionize ocean exploration and push the boundaries of our understanding of life in the deep sea.
David Gruber | Speaker | TED.com