Charles Darwin Quote

The progenitors of man must have been aquatic in their habits; for morphology plainly tells us that our lungs consist of a modified swim-bladder, which once served as a float.


The Descent of Man and Selection in Relation to Sex (2nd edition), Part I, Chapter VII (p. 164)

Picture Quote 1

The progenitors of man must have been aquatic in their habits; for morphology plainly tells us that our lungs consist of a modified swim-bladder,...

Picture Quote 2

The progenitors of man must have been aquatic in their habits; for morphology plainly tells us that our lungs consist of a modified swim-bladder,...

Picture Quote 3

The progenitors of man must have been aquatic in their habits; for morphology plainly tells us that our lungs consist of a modified swim-bladder,...

Picture Quote 4

The progenitors of man must have been aquatic in their habits; for morphology plainly tells us that our lungs consist of a modified swim-bladder,...