Two species of turtles belonging to the same genus occasionally cross paths in nature and attempt to mate. However the shape of their shells makes mating nearly impossible so fertilization rarely occurs. What mechanism is keeping these two turtle species separate?     Mechanical isolation   Behavioural isolation   Geographic isolation   Hybrid isolation   Temporal isolation

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Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.