Once upon a time, there were no herbivorous mammals- but there were
hoofed mammals - ungulates. Pakicetus is a member of an extinct line of
ungulates that were carnivorous - so although they look like dogs,
they're actually more closely related to sheep and hippos.
yes, they are actually one of the basal ancestors of whales. How do we
know? In the inner ear of Pakicetus is a specific feature endemic to
their family group, which no other group of animals share- except modern
These guys lived in what is now Pakistan 55-40
million years ago, and during that time, the Indian subcontinent had yet
to plow into Asia (creating the Himalayas), so until then, these guys
had a nice beachfront where they could frolic and eat fishies in the
warm shallow lagoons. :D
they already had the long fish-catching snout and high-rotated eye
sockets on top of their head, perfect for breathing while swimming!