The construction of the panama canal in 1914 connected marine populations in the atlantic and pacific oceans for the first time in several million years, but created a barrier to movement between terrestrial populations living in north and south of the canal. Would a biologist think that the following statement is true or false? Atlantic and Pacific populations of Lumpy Claw Crabs (Eriphia squamata) probably experienced chance survival of individuals in every generation since 1914.