Adh -> NADH + aldehyde (or ketone) + H+
Rift Valley 40 MY; Tanganyika < Michigan Victoria < Superior < Caspian

1=	2=	3=	4=	5=
6=	7=	8=	9=	10=
11=	12=	13=	14=	15=
16=	17=	18=	19=	20=

1=		2=		3=
4=		5=

6=			7=		8=
9=			10=

11=	12=	13=
14=	15=

16=	17=		18=
19=	20=

21=			22=		23=
24=			25=

26=	27= 	28=