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The UK has chosen a dangerous path out of the coronavirus pandemic

Chris Ratcliffe/Bloomberg via Getty Images DURING the coronavirus pandemic, we have all become amateur epidemiologists, readily discussing R numbers, herd immunity and test sensitivity in everyday conversation. Now, with the virus still nowhere near eliminated, we would do well to concern ourselves with the principles of viral evolution too. It is a widespread misconception that […]

Secret underwater messages can be hidden in whale and dolphin chatter
Technology

Secret underwater messages can be hidden in whale and dolphin chatter

By James Urquhart Dark-coloured false killer whales (Pseudorca crassidens), here swimming with a pod of paler-coloured bottlenose dolphins (Tursiops truncatus) Richard Robinson/Nature Picture Library/Alamy Secret underwater messages could be camouflaged as the clicks and whistles of whale or dolphin calls, fooling eavesdroppers by making them believe they are hearing marine animals. Marine mammal sounds can […]