What Disadvantage Did Our Sun-Adapted Ancestors Have When They Moved To Northern Latitudes?. In northern manhattan, what happened to the northern dusky salamanders that. They made too much eumelanin, so their bodies could not produce enough vitamin d after.

One significant disadvantage was the reduced sunlight. In northern manhattan, what happened to the northern dusky salamanders that. Answer:which observation led wallace to conclude that all species are connected in a tree.