A prototypical extrovert is someone talkative, outgoing, who prefers taking the initiative in groups, expresses positive emotion and enjoys seeking out new experiences. By contrast, a prototypical introvert is quiet, emotionally reserved, less effusive, and harder to get to know.

You can imagine which of those is going to have an easier time in most jobs.

Ancestors of modern humans "recycled" broken flint tools 400,000 years ago in order to create small, sharp utensils with specific functions in the processing of animal products and plant materials. The results were found in digs at Qesem Cave, located just outside Tel Aviv, which was discovered in 2000 during a road construction project and has since provided insights into life in the region hundreds of thousands of years ago.

Sulfurihydrogenibium yellowstonense (Sulfuri), the bacterium that controls the formation of rocks that look like pasta on Earth is ancient and thrives in harsh environments that are similar to conditions on Mars.

That's why cute robots on the surface might want to look for fusilli or some other noodle.

In only 10 percent of flowering plant species do female and male flowers exist on separate plants, where they typically remain female or male throughout their lifetime. The other 90 percent combine both sexes in one plant.

The "loser effect"- avoiding violence after losing a fight - evolves independently of any change in fighting ability, according to results after scientists studied male broad-horned flour beetles, which regularly fight over females, to see how long they avoided fights after a defeat. 

Most would not start a fight for about four days after a loss, but researchers selectively bred the beetles for a shorter duration of this loser effect and found that it evolved to be shorter - despite no improvement in fighting prowess. 

A Neptunian planet named NGTS-4b has been found in what should be a 'Neptunian Desert' using the Next-Generation Transit Survey (NGTS) observing facility, designed to search for transiting planets on bright stars. NGTS-4b is so small other ground surveys wouldn't have spotted it.

But small is relative. Though NGTS-4b is 20% smaller than Neptune, that is about 3 times the size of Earth, and 20 times our Earth in mass. It has been nicknamed the 'Forbidden' planet by researchers and is hotter than Mercury at 1,000 degrees Celsius. It orbits around the star in only 1.3 days - the equivalent of Earth's orbit around the sun of one year.