:11:08
bottlenose are even
more prone to clashing
:11:10
with members
of their own species
:11:13
these males in the
bahamas bear many scars
:11:16
including those
from fierce battles
:11:19
a first sign of impending
trouble is "jaw clapping"
:11:22
a clear audible threat
:11:34
when fights break out
:11:36
they're marked
by head ramming
:11:37
biting
:11:39
and blows from
powerful flukes
:11:59
many dolphins have
evolved their own
:12:02
sometimes brutal
:12:03
aspects of society
:12:09
shark bay
in western australia
:12:11
where vast sea
grass beds support
:12:14
a large community
of bottlenose dolphins
:12:17
here an international
team of scientists
:12:20
investigates
dolphin aggression
:12:25
the waters of shark
bay are in the throes
:12:27
of what appears
to be a gang fight
:12:29
groups of males are observed
chasing down other males
:12:33
it can go on for hours
and cover miles of territory
:12:41
the battles are over females
:12:43
part of an extremely complex social
system only now being unraveled
:12:49
by dr. Richard connor from the
university of massachusetts
:12:53
he's spent his professional life
studying dolphins in the wild
:12:57
and his work has changed
our image of the dolphin