India hosts world’s oldest algae fossil

Scientists in India have uncovered a pair of 1.6 billion-year-old fossils that appear to contain red algae, which may be the oldest plant-like life discovered on Earth.Until now, the oldest known red algae was 1.2 billion years old.

First blood test for autism developed

Scientists have discovered a way to accurately predict whether a child has autism spectrum disorder by analysing a blood sample, an advance that opens the door to earlier diagnosis and potential future development of therapeutics.