Only two blue whale births have ever been recorded in human history, both decades ago. This remains an extraordinary mystery, given there used to be hundreds of thousands of blue whales before whaling ...

And sightings of calves are remarkably rare, falling far below what should be expected based on pregnancy rates. For example, ...

While the whales gather in large numbers in the summer, they typically produce calves in the winter and fall, when few researchers are around to watch, he said. “My conceptual model can explain ...