Whales, the ocean’s largest creatures, have a surprising evolutionary past — they once walked on land. About 50 million years ago, the ancestors of today’s whales roamed near rivers and lakes on four legs before gradually adapting to life in water.
One of the earliest known whale ancestors was Pakicetus, a goat-sized mammal discovered in present-day Pakistan. Unlike modern whales, it lived on land but showed early traits that would later help its descendants thrive in aquatic environments.
Also Read: How Many Animals Will Be Sacrificed On Eid Ul Adha In Pakistan?
Over millions of years, these land-dwelling animals slowly evolved into fully marine species. Limbs turned into flippers, bodies streamlined, and they developed features for deep diving and echolocation.
Today’s whales are a testament to this dramatic transition — a journey from land to sea that remains one of the most fascinating stories in evolutionary history.
