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The earliest life on Earth consisted of prokaryotes — small single-celled organisms without nuclei. These earliest organisms were anaerobic — they did not require oxygen to live.

The earliest life on Earth consisted of prokaryotes — small single-celled organisms without nuclei. These earliest organisms were anaerobic — they did not require oxygen to live.

~~ NIAID/Flickr (CC BY 2.0)

Ebola, Rosetta, e-cigarettes and more top stories of 2014

Several animals can already do photosynthesis. Will humans follow suit?​

Eating the Sun: Can Humans Be Hacked to Do Photosynthesis?

Sea Slug absorbs algae DNA to produce Chlorophyll. The rich green color of the photosynthesizing sea slug, Elysia chlorotica, helps to camouflage it on the ocean floor.

Shame on the IOC, NBC and foreign governments for turning a blind eye on Russia's LGBT hate campaign

Shame on the IOC, NBC and foreign governments for turning a blind eye on Russia's LGBT hate campaign

Nancy Goldstein: As long as the Sochi games are fine, the IOC and others will ignore Putin's moves to intimidate and hurt LGBT Russians

Introduction to the Protists

This is a minute HD dramatic video choreographed to powerful music, which introduces the viewer to the microscopic kingdom of the Protists. By Frank Gregorio

Vaccination Rates In Elite Los Angeles Schools Now Worse Than In Southern Sudan | IFLScience

Vaccination Rates In Elite Los Angeles Schools Now Worse Than In Southern Sudan

Common name: Methanogens Species name: Methanococcus0 jannischii Methanogens take on a globular shape and can be found at 2,600 meters depth in the East Pacific, the place of its first discovery. It can produce H2 and C02 as energy and carbon in a mineral medium for growth.

Common name: Methanogens Species name: jannischii Methanogens take on a globular shape and can be found at meters depth in the East Pacific, the place of its first discovery. It can produce and as energy and carbon in a mineral medium for growth.

Image: Color micrograph showing a cross-sectional (transverse) view of the closing neural tube in a Xenopus embryo. Actin is shown in green.

The central nervous system (CNS) in most vertebrates forms initially as a flat sheet of cells, which subsequently rolls up and fuses shut to form the hollow neural tube, which is the precursor to the.

The shape of infectious prions -  Prions are unique infective agents -- unlike viruses, bacteria, fungi and other parasites, prions do not contain either DNA or RNA.

The shape of infectious prions - Prions are unique infective agents -- unlike viruses, bacteria, fungi and other parasites, prions do not contain either DNA or RNA.

Do These Kids Have Special Truth Vision, Or Are The Rest Of Us Just In Denial?

Do These Kids Have Special Truth Vision, Or Are The Rest Of Us Just In Denial?

Lake Natron in northern Tanzania turns animals into statues. The lake can reach a temperature of up to 50 degrees Celsius and its alkalinity levels vary between pH 9 - 10.5. Only some extremophiles, like the alkaline tilapia, live there. All other creatures that mistakenly ‘crash’ into the most caustic lake on Earth, are turned into calcified versions of themselves. Photographer Nick Brandt visited the place and took this eerie images of birds turned into statues after ‘crashing’ into the…

Lake Natron in northern Tanzania turns animals into statues. The lake can reach a temperature of up to 50 degrees Celsius and its alkalinity levels vary between pH 9 - 10.5. Only some extremophiles, like the alkaline tilapia, live there. All other creatures that mistakenly ‘crash’ into the most caustic lake on Earth, are turned into calcified versions of themselves. Photographer Nick Brandt visited the place and took this eerie images of birds turned into statues after ‘crashing’ into the…

Polydactyly is a condition in which extra digits are present on hands or feet. In most cases the extra digit is unusable and removed at an early age. This condition is rare in humans, but very common in cats, and is not at all unusual for them to be born with three or more extra digits on each paw.

Polydactyly is a condition in which extra digits are present. In the majority of cases the extra digit is unusable and removed at an early age. Polydactyly is relatively rare in humans, but common in cats.

Genes picked up from prokaryotes likely helped an algal species adapt to its extreme environment—acidic hot springs worldwide—according to new research published today (March 7) in Science. Specifically, researchers estimate that about 5 percent of the extremophilic red agla’s protein-coding genes were picked up from bacteria or archaea, granting the metabolic flexibility to survive the extraordinarily conditions.

Some appear to have adapted to extremely hot, acidic environments by collecting genes from bacteria and archaea.

'Fossil' protein clue to early life

Resurrected protein’s clue to origins of life “New reconstructions of ancient proteins have provided clues to the habitat and origins of life on Earth. The resurrected protein is thought to have.

New reconstructions of ancient proteins have provided clues to the habitat and origins of life on Earth.  The resurrected protein is thought to have existed almost four billion years ago in single-celled organisms linked to the earliest ancestor of all life.  The protein survives in the extreme environments of high acidity and temperature expected on early Earth and, intriguingly, also Mars.
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