As far as scientists know, there have been a grand total of five mass extinctions over the last 500-million years - world-changing events during which the great majority of Earth's life was eliminated to make way for new organisms and evolutionary paths. However, for several decades, some experts have suspected that a 6th mass extinction existed among these "Big Five." Now researchers are claiming to have found extremely compelling proof of its existence.
For as long as it has been in society's crosshairs, homosexuality has been part of a very simple debate: is it natural or is it a choice? The question of whether it was helpful to a species was never considered; after all, do we question whether it's better for humanity to boast a specific eye color or personality? Now however, a new study has revealed that the trait can be very helpful to a species, and you won't believe how.
With wolves slowly making a recovery across the United States, a question has arisen: should wolves be left to do as they please, even while they prey on livestock? Researchers have now looked at the dynamics of this mounting debate, trying to help both sides understand the other better.
Experts have recently decided to revisit the question "what is a planet?" citing the fact that it remains unclear if many of the hundreds of exo-planets observed in far-off solar systems are actually true planets, or just various "planetoids" or dwarf planets like Pluto was first demoted to back in 2006.