Will Dolphins and Orcas ever walk on land again after 250 million years of evolution? Science has a chilling answer
etimes.in / Jan 19, 2026, 14:12 (IST)
A new study confirms that dolphins and orcas have reached a "point of no return" in their evolution, making a return to land biologically impossible. Their specialized aquatic anatomy, developed over millions of years, means they are now irrevocably tied to ocean life, facing vulnerability to environmental changes.