A brain parasite may make chimpanzees less cautious and fearful of leopards. Maybe.
\nFor over 60 years, fruit flies have been trapped in the dark in one of the longest ongoing scientific experiments. 1,500 generations later, some evolutionary effects are being revealed.
\nA new technique of using modified cancer cells to fight cancer is showing some impressive results in mice, but it\u2019s early days yet.
\nThe Australian town of Wangaratta is being swamped by tumbleweeds. And it\u2019s all one person\u2019s fault.