2. lifeunderthewaves:

    Seal Vs Octopus
    On a dive underneat a pier in Victoria, Australia, I came across a juvenile Australian fur seal attacking and eating a large octopus. The seal would grab an arm of the octopus and tear off a chunk then come back and bite the head (maybe to stun the octopus?) before ripping off another mouthful.
    Photograph by Phil Davison

    (via wildography)

  3. (Source: oceansblue, via crystallinesea)

  4. lifeunderthewaves:

    Octopus vulgaris by GabyBarathieu Octopus in Réunion island

    (via crystallinesea)

  5. thelovelyseas:

    Hooded Nudibranch, Melibe leonina - British Columbia, Canada by David Hall

    (via crystallinesea)

  6. thelovelyseas:

    An all-black Commerson’s (or giant) frogfish, Antennarius commersonimoving from one piling to another, beneath a jetty. Frogfish are poor swimmers, and may use a combination of tail flapping from side to side and “jet propulsion” (shooting swallowed water out backward through their narrow gill openings) to move slowly through the water. (Ambon, Indonesia) by David Hall

  7. wtfevolution:

    "Don’t touch this king crab."

    "Sure, evolution."

    "Seriously, don’t touch it."

    "Yeah, okay, fine."

    "I mean it this time."

    "Yeah, I can see that."

    "No, really. Don’t.

    "I think you’ve made your point."

    Source: Courtesy of NOAA Okeanos Explorer Program, 2013 Northeast U.S. Canyons Expedition.

  9. scaleworm alexander semenov
    bolthenia echinata alexander semenov
    mantis shrimp by daniel stoupin
    pocillopora sp by daniel stoupin
    bent christensen
    huiaria thuja by alexander semenov
    halocynthia aurantium by alexander semenov


    though usually hidden to the human eye, naturally occurring marine biofluorescence can be seen under certain wavelengths of light (like ultraviolet) which causes the cells of the organisms seen here to absorb the light — and some of the photon’s energy — and then emit back a now less energetic light with a longer wavelength and thus a different colour.

    biofluorescence is not be confused with bioluminescence (see posts), which is a  chemical reaction endemic to an organisms that causes them to glow.

    photos by (click pic) daniel stoupin, alexander semenov, bent christensenlouise murray, and american museum of natural history (click pic for species)

    (via ichthyologist)

  10. rhamphotheca:

    The Long Arm of the Planktivore

    by Brian Switek

    The Cambrian oceans hosted a riot of evolutionary novelty. Over a seabead burrowed by penis worms and tread by living pincushions, multi-eyed invertebrates swung their schnozzles after prey and our closest, archaic relatives squirmed through the water.

    Largest of all were the anomalocaridids – cousins of arthropods that flapped through the water on segmented wings and were equipped with a pair of “great appendages” hanging below a pineapple-ring mouth. Their size and flexible, spiky arms have made them dead ringers for apex predators in the eyes of paleontologists, but new research has cast at least one of these mind-bending invertebrates as a filter-feeder that was only a threat to plankton.

    The pioneering planktivore was Tamisiocaris borealis, a relatively new addition to the anomalocaridid family tree named by paleontologists Allison Daley and John Peel in 2010. That description was based on a sole great appendage found in the 520 million year old rock of North Greenland’s Sirius Passet.

    Against the slow grind of paleontology publication, however, discoveries in the field can quickly turn up additional parts of organisms that are already on their way to press. Expeditions in 2009 and again in 2011 uncovered additional appendages of Tamisiocaris in an even better state of preservation…

    (read more: Laelaps blog - National Geo)

    images: illustration by Rob Nicholls; Photo by Jakob Vinther/University of Bristol

    (via scientificillustration)

  11. fuckyeahaquaria:

    Goosefish | Sladenia remiger

    Goosefish rest partially buried on soft bottom substrates and attract prey using a modified first dorsal fin ray that resembles a fishing pole and lure. Goosefish are piscivorous and commonly eat prey as large as themselves.”   -

    (by NOAA Ocean Explorer)

  12. bpod-mrc:

    24 March 2014

    Model Making

    Balancing on this dense forest of poles are the beginnings to the first molecular model of a protein ever to be made. Representing single atoms, each little ball is located in exactly the right position. The man behind the model is John Cowdery Kendrew, who was born on this day in 1917. Together with biologist Max Perutz, he won the 1962 Nobel Prize in Chemistry for finding out the structure of two proteins using a method called X-ray crystallography. Though it’s essentially a type of microscopy that zooms in incredibly far, it’s tricky to use. Rather than creating a magnified picture, it produces a dotted pattern that scientists need to decipher. And to generate a clear pattern, the protein molecules need to be in a perfect crystal formation. Kendrew and Perutz cleverly accomplished both, and thereby pioneered a new level of understanding into the biomolecules that run life.

    Written by Emma Bornebroek

    Image courtesy of the MRC Laboratory of Molecular Biology
    Any re-use of this image must be authorised by the LMB

    You can also follow BPoD on Twitter and Facebook

    (via scientificillustration)

  13. allcreatures:

    Dorset Wildlife Trust discovered a species of starfish Kimmeridge that has never been recorded there before. The small cushion starfish (Asterina phylactica) was found by a group of volunteers in rockpools during one of the lowest tides of the year.

    Photograph: Julie Hatcher/Wildlife Trust (via The week in wildlife - in pictures | Environment | theguardian.com)

  14. deepblueseawhales:

    San Juan-264.jpg (by Michael J. Schultz)