Scientists were able to grow plants so quickly that one colleague couldn't believe it.
A Muslim takeover is seen as a long shot, even if Europe's Muslim population triples.
Africa is expected to have the most population growth through 2050.
With a severely restricted immigration policy, Japan is now suffering from a lack of low-skilled workers, especially in the health services.
France has one of the highest birth rates in the EU, but it is declining as women wait to have children.
The increase in tiger numbers is primarily seen in India, Russia, Nepal and Bhutan.
A total of 14 percent of all humans who have ever existed are alive today.
SIM cards are multiplying five times faster than people.