World of interesting facts and useful tips

Genetic behavior responsible for early puberty in modern girls

The University of Cambridge, in the largest study of its kind - involving more than 180,000 women and scientists from 166 institutions worldwide have found that the age at which girls reach sexual maturity is influenced by "imprinted" genes - a small sub-set of genes whose activity differs depending on which parent passes on that gene. 

The researchers identified 123 genetic variations that were associated with the timing of when girls experienced their first menstrual cycle by analysing the DNA of 182,416 women of European descent from 57 studies. Six of these variants were found to be clustered within imprinted regions of the genome. Source

The ill fate of Titanic ship

The luxury liner Titanic, which sank in the ice cold Atlantic waters in 1912, was unlucky to have set sail in a year with a greater number of icebergs than normal.

The study found that there were a greater number of icebergs than normal that year, and weather conditions had driven them further south, and earlier in the year, than was usual.Researchers also note that iceberg discharge from glaciers is increasing, with more heavy iceberg years since the 1980s than before, and increasing global warming will likely cause this trend to continue. Source