mucholderthen:

NATIONAL BADASS CRUSTACEAN WEEK

Well, it should be.  And the Peacock Mantis Shrimp deserve more than just their own day - besides, if we didn’t give them a week, they’d just take it anyways, right?

The main feature, the defining characteristic of these fine sea creatures is that they are not the crustaceans with which you want to mess.

Habitat: Indian and Pacific Oceans - from Guam to East Africa

IMAGE CREDITS
oceanleadership.org
ocean.nationalgeographic.com
slices-of-life.com
aquanauts74 [Weh Island, Sabang, Indonesia]

(X)

(via aristela)

sciencenote:

11^th Prize - Alex H. Griman

Alex Kawazaki Photography - São Paulo, Brazil

Specimen: Pupil of a Macrobrachium amazonicum (freshwater prawn) (20x)

Technique: Stereomicroscopy

(via thesciencenotebooks)

staceythinx:

Biologically inspired work by Shoshanah Dubiner

(via neuromorphogenesis)

scinerds:

Thanks to Stanford University’s aptly named Clarity, scientists are now able to scan the brain for unobstructed views of neurons and their connections. In this scan, aided by a green fluorescent protein, one is able to see the axonal and dendritic branches of neurons within the hippocampus.

(via neuromorphogenesis)

neuraldamage:

TEM of a section through a nerve fiber showing the axon bundle (Wellcome Images)

diamidinophenylindolee:

Synapse EM

This EM image reveals a synapse between an axon and dendrite. Note the presence of numerous synaptic vesicles and mitochondria in the axon.

Source.

 

(via neuromorphogenesis)

medicalschool:

Transmission electron micrograph of the mitochondria

(Source: umbc.edu, via we-are-star-stuff)

(via gnossolalia)

mucholderthen:

SCIENTIFIC ILLUSTRATION:  Nucleosome
The Mediterranean Institute for Life Sciences
Split, Croatia

High resolution ray-traced model of a nucleosome, isolated on black.

A nucleosome is the basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound in sequence around four histone protein cores.  This structure is often compared to thread wrapped around a spool.

Nucleosomes form the fundamental repeating units of eukaryotic chromatin, which is used to pack the large eukaryotic genomes into the nucleus while still ensuring appropriate access to it.  In mammalian cells approximately 2 m of linear DNA have to be packed into a nucleus of roughly 10 µm diameter.  

Nucleosomes are folded through a series of successively higher order structures to eventually form a chromosome; this both compacts DNA and creates an added layer of regulatory control, which ensures correct gene expression.

(Nucleosome - Wikipedia)

pappubahry:

Saturn’s moon Rhea is held in the centre of the frame; Tethys moves behind it.  Photographed by Cassini, 8 July 2006.

A collection of planetary nebulae; clouds of ionized gas that form as red giant stars die and cast off their outer layers.  This process enriches interstellar space with heavy elements that go on to form new stars and planets.

(Source: hubblesite.org)

Earth photographed from Apollo 11.

(Source: eol.jsc.nasa.gov)

Earth seen from the Moon by the astronauts of Apollo 11.

(Source: eol.jsc.nasa.gov)

Earth seen by the GOES-14 weather satellite, May 22nd 2013.

(Source: goes.gsfc.nasa.gov)

Earth seen by the GOES-14 weather satellite, May 22nd 2013.

(Source: goes.gsfc.nasa.gov)