<s>
These	O
events	O
have	O
occurred	O
in	O
at	O
least	O
seven	O
primate	O
species	O
:	O
chimpanzee	O
,	O
human	O
,	O
gorilla	B-Application
,	O
orangutan	O
,	O
rhesus	O
macaque	O
and	O
baboon	O
.	O
</s>
<s>
The	O
gene	O
locus	O
,	O
TAS2R16	O
,	O
also	O
tells	O
a	O
story	O
about	O
bitter	B-Algorithm
taste	I-Algorithm
evolution	I-Algorithm
.	O
</s>
