Which situation is least likely to lead to geographic isolation and allopatric speciation?
A) An eight-lane highway dividing a population of snails with limited mobility
B) A deep, narrow river dividing a population of hummingbirds
C) A deep, narrow river dividing a population of white-footed mice (not known for their swimming ability)
D) A patch of land bisecting a river and divides a population of minnows
E) A mountain range divideing a population of moths

Question

Quizplus · Accepted Answer

Hummingbirds are highly mobile and capable of flying over obstacles such as rivers, making geographic isolation due to a deep, narrow river less likely for them compared to the other scenarios which involve barriers more effective at isolating populations.

Which Situation Is Least Likely to Lead to Geographic Isolation