Evolution is a weird thing. Particularly for those who still think there has to be some designer, for whom the random twists and turns of evolution can be utterly confusing. Why, for example, if you wanted to make a giant sea living creature, would you start with something on the land?
So the discovery of fossils like that of Indohyus, a fox-sized, deer-like mammal that lived 48 million years ago and spent a fair amount of time in the water, is the sort of thing that must do their heads in.
The BBC report, the Nature News summary and the original paper, snappily titled "Whales originated from aquatic artiodactyls in the Eocene epoch of India"