A river meanders lazily through the plains but, in rocky terrain, might tumble rapidly down as a waterfall, sometimes in multiple cascades. Charles Darwin had earlier proposed that changes in the characteristics of organisms happen very slowly over time and generations, just like the river’s gentle flow.
A study reviewed the available literature on zoonotic pathogens in the food chain to assess their threat and recommend steps to mitigate them.
New Delhi/ Jan 25, 2025