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Latest Hypolimnas bolina Stories

2009-09-10 14:25:25

Scientists at the University of Liverpool have traced the evolution of a species of tropical butterfly, infected with a bacterium that kills males, by comparing current butterfly populations with more than 200 museum specimens. The bacteria, called Wolbachia, are a parasitic microbe and are known to significantly alter the reproductive capabilities of a high proportion of insect species, including wasps and fruit fly. The team found that the male-to-female ratio in butterfly populations...

2009-09-10 14:07:17

In a perfect world, for every boy there would of course be a girl, but a new study shows that actual sex ratios can sometimes sway very far from that ideal. In fact, the male-to-female ratio of one tropical butterfly has shifted rapidly over time and space, driven by a parasite that specifically kills males of the species, reveals a report published online on September 10th in Current Biology, a Cell Press publication. "We were surprised at the speed with which change in sex ratio could...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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