Researchers at IIT Guwahati have discovered that while drought shrinks the vertical water channels in plants, it triggers a structural adaptation that boosts the efficiency of sideways water transport, ensuring survival in dry conditions.
New evidence from Martian valley networks confirms a gradual climate shift from warm and wet during the Noachian period, around 4 billion years ago, to cold and icy by the Hesperian period, around 3 billion years ago.