主播大秀

Although marine ecosystem collapses are caused in part by over-fishing and pollution, they can be traced back to events reaching back many centuries and millennia. Attacking bacteria with tiny peptide "needles" that build themselves. NASA's Deep Impact probe is designed to study the interior of comet Temple 1. New study proposes that the Black Death was not caused by the bubonic plague bacterium but was caused by a filovirus similar to the Marburg virus or Ebola. The cleverness of chillies.