Baleen whale - Wikipedia
A Possible Break in One of Evolution's Biggest Mysteries - The Atlantic
When Did Whales Evolve? - The Atlantic
The Walking Whales by J. G. M. Hans Thewissen - Paperback - University of California Press
Today's Whales Are Huge, But Why Aren't They Huger? | Science| Smithsonian Magazine
Giant jawbone suggests ancient marine reptiles grew as big as blue whales
Whales | Smithsonian Ocean
BBC News | SCI/TECH | When whales walked the land
When whales were fish — Lateral Magazine
Ancient four-legged whales once roamed land and sea
The Origin of Whales (evolution) - Baleines en direct
Ancient four-legged whales once roamed land and sea
How Big Are Blue Whales Really? (And More Importantly: Why?) | IFLScience
Pakicetus: The First Whale Was a Land Animal | AMNH
The evolution of whales from land to sea
Ancient whale fossil has legs and hooves, could move on land and sea | SYFY WIRE
Ancient Whales Gave Birth on Land | Live Science
36-million-year-old whale fossil found in Peruvian desert
Whales on the Wrong Side of the World
When whales walked on four legs | Natural History Museum
Fossil of prehistoric land-roaming whale species is identified - CBS News
Whale - Wikipedia
Whale evolution and adaptation - Australian National Maritime Museum
This Giant Ichthyosaur Might Have Been Bigger Than a Blue Whale | Nature and Wildlife | Discovery
Early Whales Had Legs | Live Science
When Whales and Humans Talk | Hakai Magazine
