Experiments have recently supported a longstanding hypothesis that explains how males can survive with only one copy of the X chromosome, a hotly debated topic in science.

Women have two X chromosomes, while men have one X and one Y. The lack of a 'back up' copy of the X chromosome in males contributes to many disorders that have long been observed to occur more often in males, such as hemophilia, Duchene muscular dystrophy and certain types of color blindness. Having only one copy of X and two copies of every other chromosome also creates a more fundamental problem; with any other chromosome, the gene number imbalance resulting from having only one copy would be lethal.

How can males survive with only one X?

The cat is possibly the cruelest hunter, and like with so many bad things, humans are to blame for turning something naturally not so good (Natural Born Killers) much worse. Some deluded apologists, most of them female and overweight, hold that even with ever more house cats hunting to escape boredom, there would be a natural equilibrium if we just let feral cats run wild. This is ridiculous, because natural cats such as lions hunt as little as possible. Every hunt risks injury. An animal cannot hunt efficiently if it is injured. Every unnecessary hunt increases the chance of the predator's death.

Recent articles and discussions around superluminal tachyons have raised various questions regarding their existence and the meaning that it might pose to physics.  Oh, the hell with it.  Why wait for science?  I've discovered the mother lode!

Welcome to the world of tachyonic energy, health, and well-being.

Tachyon theory states that the Tachyon universe continually creates, sustains and energizes the physical universe. Every created thing owes its existence to the expansion of the Tachyon Field. In this sense, it sounds like a religious description of the Creator, or the Creative Force.
http://www.macrobiotic.org/health11.html

Thou by the Indian Ganges' side
Shouldst rubies find. I by the tide
Of Humber would complain. I would
Love you ten years before the Flood . . . 

In November 2010, the distant dwarf planet Eris passed in front of a faint background star, an event called an occultation. Occultations provide the most accurate, and often the only, way to measure the shape and size of a distant Solar System body like Eris.

Eris was identified as a large object in the outer Solar System in 2005. Its discovery was one of the factors that led to the creation of a new class of objects called dwarf planets by the IAU and the demotion of Pluto from planet to dwarf planet in 2006. Eris is currently three times further from the Sun than Pluto.

Astronomers are reporting that organic compounds of unexpected complexity exist throughout the Universe - which mean they can be made naturally by stars.

Researchers write in Nature that an organic substance commonly found throughout the Universe contains a mixture of aromatic (ring-like) and aliphatic (chain-like) components, compounds so complex that their chemical structures resemble those of coal and petroleum. 

Since coal and oil are remnants of ancient life, this type of organic matter was thought to arise only from living organisms but this new discovery suggests that complex organic compounds can be synthesized in space - even when no life forms are present.

When the DNA sequences of Homo sapiens and Pan troglodytes were sequenced, the difference between the sequences of coding genes was smaller than expected based on the phenotypic differences between both species. If not the coding genes, then what is responsible for these dissimilarities?

   

(Source: godlessgeeks.com)

   

In the words of the authors of a new study that took a look at this question:

Scientists have discovered more about the intricacies of Natural Killer cells, a unique type of white blood cell important in early immune responses to tumors and viruses.  

Unlike most cells of the immune system that are activated by molecules found on the pathogen or tumor, Natural Killer cells are shut down by a group of proteins found on healthy cells. These de-activating proteins, known as Human Leukocyte Antigens or HLA molecules are absent in many tumors and cells infected with viruses, leaving them open to attack by the Natural Killer cells. 

Natural Killer cells recognize the HLA molecules using an inbuilt surveillance system called "Killer cell immunoglobulin-like receptors" (KIR).