Q322. According to Darwin s Theory of Evolution Jong necks in giraffes (a)arose because of constant attempt to reach leaves on tall trees generation after generation (b)do not give them any special advantage and is just an accident (c)give them advantage in finding food because of which those with long necks survive (d)is a result of the special weather prevalent in African Savannah
Option A) Darwin was the first to propose that long necks evolved in giraffes because they enabled the animals to eat foliage beyond the reach of shorter browsers. Darwin himself wrote ‘…it seems to me almost certain that an ordinary hoofed quadruped might be converted into a giraffe.’ He speculated that fourlegged animals with longer and longer necks would be capable of reaching higher leaves and vegetation. Thus, during droughts, they would be more likely to survive and pass on this characteristic, than those with shorter necks. Over time, a creature that was not a giraffe would evolve into a giraffe with an extraordinarily long neck
