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Terrestrial Origins and Evolution
A living arthropod (centipede Cormocephalus) crawls over its 515-million-year-old relative which lived during the Cambrian explosion (trilobite Estaingia)
Viewed: 26 times
09/15/13
The small hopping insect Issus coleoptratus uses toothed gears (magnified above with an electron microscope) to precisely synchronize the kicks of its hind legs as it jumps forward. Credit Courtesy of Malcom Burrows
Viewed: 24 times
09/16/13
The juvenile Issus has hind-leg joints that help synchronise the its legs when it jumps. Credit: Courtesy of Malcom Burrows
Viewed: 25 times
09/16/13
Urzyme planet illustration
Viewed: 35 times
09/17/13
Convection caused by heating will generate a pattern of hexagons in a thin film of oil, showing that order can be brought to a system. Credit: Van Dyke 1982, An Album of Fluid Motion
Viewed: 23 times
09/22/13

A microtubule in a cell is an example where something in life is created spontaneously with self assembly. Credit: Eva Nogales
Viewed: 23 times
09/22/13
The catalysts could form enough molecules that self assembly occurs, creating a barrier around the catalysts so that they don't disperse. Credit: Terrence Deacon
Viewed: 24 times
09/22/13
SEM image of planktic and benthic foraminifera from Tanzania
Viewed: 17 times
09/25/13
Microscopic view of Schizosaccharomyces pombe yeast. Credit: David O Morgan
Viewed: 22 times
10/03/13
Human chromosomes capped with telomeres
Viewed: 21 times
10/03/13

This image shows flower-like pollen from the Triassic
Viewed: 20 times
10/06/13
The traditional 2° structure of the 23S rRNA of E. coli.
Viewed: 20 times
10/06/13
The new 2° structure of 23S rRNA
Viewed: 19 times
10/06/13
Space filling representation of Domain 0 from 23S rRNA of E. coli
Viewed: 21 times
10/06/13
2° structure based on data from high-resolution 3-D models from the online gallery at GA Tech
Viewed: 17 times
10/06/13

This is a close-up of the head region of the Alalcomenaeus fossil specimen with the superimposed colors of a microscopy technique revealing the distribution of chemical elements in the fossil.
Viewed: 18 times
10/18/13
Illustration of the nervous systems of the Alalcomenaeus fossil (left), a larval horseshoe crab (middle) and a scorpion (right).
Viewed: 19 times
10/18/13
Fossil of the megacheiran Alalcomenaeus
Viewed: 17 times
10/18/13
These fossils are approx. 2 billion years old and according to Emma Hammarlund they represent some very early life forms, that maybe tried to evolve into some kind of multicellular organism, but didn't suceed. Credit: Abder El Albani
Viewed: 20 times
10/22/13
A comparison between the growth of the ‘teeth’ of the paraconodont Furnishina (left) and the euconodont Proconodontus (right).
Viewed: 19 times
10/22/13

This is a CT reconstruction of a foram measured at the Diamond Light Source.
Viewed: 18 times
10/26/13
This is a CT reconstruction of a foram measured at the Diamond Light Source. Credit: Oscar Branson, University of Cambridge
Viewed: 16 times
10/26/13
The intricate structure of plankton shells provides new opportunities to chart complex changes in climate. Credit: Oscar Branson, University of Cambridge
Viewed: 18 times
10/26/13
Model of the chlorophyll a molecule, the most common form of chlorophyll, the green pigment that all plants use for photosynthesis.
Viewed: 17 times
10/27/13
This is a 3D model of the cyber-centipede.
Viewed: 16 times
10/29/13

This is an illustration of damage to DNA from exposure to radiation. Image Credit: ExploreMars.org
Viewed: 18 times
11/01/13
An example of structures from the Dresser Formation, Pilbara, Western Australia, plus possible modern equivalents. Credit: Noffke et al. 2013
Viewed: 17 times
11/13/13
Wrinkle mats at the Dresser Formation (Pilbara region). Credit: Wikicommons
Viewed: 14 times
11/14/13
The team analyzed amber samples from almost all well-known amber deposits worldwide. This amber originates from the Cretaceous period, an inclusion of foilage of the extinct conifer tree Parataxodium sp. from the Foremost Formation at Grassy Lake, Alberta, Canada. It is approximately 77 million years old. Photo Credit: Ryan C. McKellar
Viewed: 20 times
11/19/13
Modern resins were also used for the study: Here fresh resin, the raw material for amber, is oozing out of the trunk of an Araucaria tree (Araucaria cunninghamii) in Adelaide Botanical Garden, Australia. Photo credit: Ralf Tappert
Viewed: 16 times
11/19/13

Selection of amber samples from the Eocene from Bitterfeld, Saxony-Anhalt, Germany, approx. 35 million years old. Photo Credit: Ralf Tappert
Viewed: 17 times
11/19/13
A mockup of the Permian Seafloor
Viewed: 14 times
11/22/13
An example of a fossilized stromatolite. Credit: Willson et al
Viewed: 14 times
12/06/13
A fossil of a horse chestnut leaf (Aesculus hickeyi) recovered from North Dakota's Sentinel Butte Formation. The fossil is roughly 195 mm in height. Credit: Department of Mineral Resources, North Dakota Geological Survey
Viewed: 11 times
01/09/14
An amino acid has a "backbone" that is held together by a single carbon atom. The sidechain "R" is a combination of atoms that is different for every amino acid. Credit: Wikimedia Commons
Viewed: 11 times
01/09/14

The 20 different amino acids will stick together in various formations to form protein. Credit: Plant & Soil Sciences eLibrary
Viewed: 25 times
01/09/14
The “isomer space” shown on the left only explores the space immediately around the amino acids. The second figure shows that using the single “fuzzy formula” explores a much wider space, but cannot account for all amino acids. The final figure shows the amino acid space when multiple fuzzy formulas are used. Reprinted with permission from Meringer et al. (2013). Copyright 2013 American Chemical Society.
Viewed: 53 times
01/09/14
After a week of sparking in a Miller-Urey experiment, the contents within the reactant flask become visibly transformed. Miller-Urey's groundbreaking work is considered to be the first deliberate, efficient synthesis of biomolecules under simulated primitive Earth conditions. Credit: JoVE—The Journal of Visualized Experiments
Viewed: 16 times
01/29/14
Stanley Miller performs his famous experiment in issue 1 from the illustrated series, Astrobiology: The story of our search for life in the Universe. Credit: NASA Astrobiology / artwork by Aaron Gronstal.
Viewed: 8 times
01/29/14
Representative diverse origins of multicellularity are shown on a highly redacted and unrooted phylogenetic diagram of the major eukaryotic clades (modified from a variety of sources). Although some lineages or clades are entirely unicellular or multicellular (e.g., lobose amoeba and the land plants, respectively), most contain a mixture of body plans such as the unicellular and colonial body plans (e.g., choanoflagellates) or a mixture of the unicellular, colonial, and multicellular body plans (e.g., ciliates and stramenopiles). In general, early-divergent persistent (EDP) lineages are dominated by unicellular species (e.g., prasinophytes in the chlorobiontic clade), whereas later-divergent lineages contain a mixture of body plans (e.g., chlorophycean and charophycean algae). Species-rich, late-divergent persistent (LDP) lineages tend to be exclusively multicellular (e.g., the land plants and metazoans). Credit: Courtesy of Karl Niklas.
Viewed: 8 times
02/04/14

Green artificial vesicle is loaded with a basic cellular machinery derived from bacterial cells. This enables it to translate an encapsulated genetic blueprint into a functional protein. The green vesicle is surrounded by other artificial primitive vesicles without cellular machinery. Credit: Illustration from the research paper in Langmuir
Viewed: 8 times
02/07/14
Photo: Per Møller
Viewed: 6 times
02/13/14
Photo: Eske Willerslev
Viewed: 5 times
02/13/14
Ultraviolet radiation can damage DNA molecules, causing "rungs" in its ladder-like internal structure to improperly bond with each other. Credit: NASA's Earth Observatory/David Herring
Viewed: 6 times
02/19/14
The red line represents the estimated oxygenation curve based on the abundance of the trace element selenium (Se) in pyrite samples. Oxygen levels are presented as %PAL (Present Atmospheric Levels), where 100% PAL represents the Earth's atmospheric oxygen at the present day. Credit: University of Tasmania
Viewed: 7 times
02/19/14

Kleiber's Law, Tiger and Tree
Viewed: 4 times
02/19/14
Kleiber, Max (1893-1976)
Viewed: 4 times
02/19/14
Ancient Soils
Viewed: 5 times
02/22/14
Chemical chaperones have helped proteins do their jobs for billions of years
Viewed: 4 times
02/22/14
U-M researchers have found in a simulation that simply inducing nanoparticles to spin causes them to self assemble into 'living rotating crystals.' The size and direction of the arrows indicate the movements of the particles, while the yellow and blue colors represent clockwise and counterclockwise spinners, respectively. The arrows arranged in orderly grids are particles that have formed rotating crystals, while the large, aligned arrows at the boundaries show how particles are driven along the interfaces. Credit: Image courtesy Sharon Glotzer
Viewed: 6 times
03/03/14

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