大象传媒

As outbreaks of bird flu in Asia raise fears that it will infect humans, researchers reconstruct part of the DNA of the virus that caused the pandemic of 1918 to discover why it was so deadly. How South Americans have suffered from Chagas disease for 9,000 years. The destruction of coastal mangrove swamps in the Caribbean is damaging the neighbouring coral reefs. Engineers create molecular sponges to store gases.