quote:
I'm still looking for the fossils that prove that bats and whales are related. After all that is what most people claim. That bats evolved into whales.

The cetaceans (whales, dolphins and porpoises) are marine mammal descendants of land mammals. Their terrestrial origins are indicated by:

Their need to breathe air from the surface;
The bones of their fins, which resemble the limbs of land mammals
The vertical movement of their spines, characteristic more of a running mammal than of the horizontal movement of fish.
The question of how a group of land mammals became adapted to aquatic life was a mystery until discoveries starting in the late 1970s in Pakistan revealed several stages in the transition of cetaceans from land to sea.

Ambulocetus natans was an early cetacean that could walk as well as swim. It is the only species classified under the genus Ambulocetus. Along with other members of Ambulocetidae, it is a transitional fossil that shows how whales evolved from land-living mammals.

Ambulocetus natans lived in the Early Eocene (50 to 48 million years ago) of Pakistan. When the animal was alive, Pakistan was a coastal region of India, which was then an island continent in the Indian Ocean (see Indian Plate).

LINK

LINK