he mucus of a rare frog that lurks in the South Indian jungle could provide the basis of a powerful new class of drugs to combat influenza, scientists have said. The bright orange tennis ball-sized Hydrophylax bahuvistara was found to contain “host defence peptides” that proved able to destroy numerous strains of human flu, whilst protecting normal cells. Researchers are excited because the peptide showed it could bind to a protein that is identical across “dozens” of strains of the disease, increasing its potential potency as a drug. People would be advised to treat the Keralan amphibian with caution, however,...