:05:01
creating a bow wave
that drives the fish ashore.
:05:11
Using their excellent
above-water vision,
:05:13
they snatch up the fish
stranded on the banks.
:05:48
How dolphins locate
the schools of fish
:05:51
and coordinate their
attack is not entirely known
:05:54
they may use either audible
or visual signals
:06:03
for some reason
:06:04
the dolphins always rush up
the banks on their right side
:06:08
over time
the teeth on that side will
:06:11
actually be worn down from
chewing as much mud as fish
:06:18
occasionally
they will work themselves
:06:21
completely out of the water
:06:26
being stranded up
here could be fatal
:06:41
as they shimmy up the mud
banks it's almost as
:06:44
if they're evolving into
the land creatures they once were
:06:51
some fifty million years ago
:06:53
the ancestors
of these air-breathing
:06:55
mammals ventured
into the seas