Stickleback Case Study

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The claim that caused the stickleback population to have less armor and become faster is claim 1. This claim states that the sticklebacks now have less armor to escape predators . I think that this is the correct claim because on evidence card B, it states that the sticklebacks main predator used to be salmon. Salmon catch their prey by trapping them in their large, strong jaws. They do not need to be as fast as the dragonfly nymph to catch the sticklebacks. The sticklebacks' main predator is now the dragonfly nymph. Dragonfly nymphs use a burst of speed to attack their food. This matters because in the sticklebacks previous environment, they needed to have a higher armor to escape the stong jaw of the salmon. Now, the predator. They use the
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