Natural Selection, as described by Charles Darwin
Answer:
first of all.....I would love to become a shark.......and eat those monster which do party on the beaches and make them dustbins.......
Body b will have a force 4 times stronger than body a, causing body b to reverse the direction of body a
When a Stickleback fish feels threatened, it will flare out its pair of pelvic spines and three dorsal spines, making it difficult for predators to swallow them.