The pair of ducks pictured represents adaption of an animal (big idea 1 #2). Ducks have webbed feet with which they paddle through the water with good speed. Birds evolved millions of years ago and were land animals, having feet similar to chickens. As they moved back into the water in search of easily attainable food and enhaced safety from predators, their feet grew back together giving them a distinct advantage over terrestrial birds and securing a fresh water ecological niche.
No comments:
Post a Comment