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Olive Ridleys' nesting site under threat
- Such changes, however, are not new. Olive Ridleys are known to change their nesting place.
- The question is whether these endangered turtles would prefer to nest on the recently formed sandbar or not. “Usually Olive Ridleys do not prefer to nest on sand patches that are not connected to the mainland.
- Zoologists say female Olive Ridleys can also absorb fertilised eggs in their body if the nesting situation is not favourable. However, the nesting habit of Olive Ridleys still remains a mystery.
Solar storm radiation hits Earth
The Sun is bombarding the Earth with radiation from the biggest solar storm in more than six years with more to come from the fast-moving eruption.
Fifth of human cancers has origin in infections'
- It may be a little known fact, but a staggering fifth of all human cancers have their origins in infections — viral, bacterial or parasitical, Nobel laureate and professor at German Cancer Research Centre (Heidelberg), Harald zur Hausen, has said.
- The leading virologist, who won the 2008 Nobel Prize in Physiology or Medicine for discovering the link between cervical cancer and the human papillomavirus (HPV), said that pathogens such as hepatitis B (virus), Helicobacter pylori (bacteria) and Schistosoma (parasite) were also known to cause certain cancers.
- Vaccinations against HPV had been particularly effective in staving off cervical cancer
- The most optimum age for vaccinating girls was nine to 14, he said and added that men should be vaccinated against the virus too in order to reduce the incidence of cancer in women.
- Prof. zur Hausen spoke of another form of cancer that is being increasingly associated with pathogens: colon cancer. In the U.S., Australia, Western Europe and most recently, in Japan, this form of cancer has been on the rise, and is now associated with beef consumption.
- Interestingly, epidemiologic studies indicate that for some cancers the presence of pathogens could actually be “protective”.
- Multiple infections, for instance, could be a protective factor against childhood leukaemia
