A population of 15 robins are all searching for worms to eat, but are concerned about cats nearby that predate the robins. Which of the following would be true if the population of robins grew to 30 birds?
A) Each robin would spend less time keeping watch for predatory cats compared to the population of 15 birds and the group's total number of cautionary glances would decrease.
B) Each robin would spend more time keeping watch for predatory cats compared to the population of 15 birds and total number of cautionary glances would decrease.
C) Each robin would spend less time keeping watch for predatory cats compared to the population of 15 birds and total number of cautionary glances would increase.
D) Each robin would spend more time keeping watch for predatory cats compared to the population of 15 birds and total number of cautionary glances would increase.
Anaswer: C