Flamingos in large flock in the wild are social extremely loyal. They perform group mating dances. Parents are very fond of their chicks, gathering them into creches for protection while both males and females fly off to search for food. Which among the following is the most logical corollary to the above passage?

The passage describes several social behaviors of flamingos: living in large flocks, performing group mating dances, forming creches for chicks, and both parents searching for food. The key phrase is "gathering them into creches for protection."

Let's analyze each option:

A) Mass nesting in all species of bird is essential to ensure complete survival of their offspring.

• The passage focuses on flamingos, not "all species of bird."
• While flamingos do nest in colonies (a form of mass nesting), the passage emphasizes the social aspect and creches for protection, not that it's "essential for complete survival" for all birds. The word "all" makes this too broad and likely incorrect.

B) Only birds have the capacity to develop social behaviour and thus can do mass nesting to raise their chicks in safety.

• The passage describes birds, but it does not state or imply that "only birds" have social behavior. Many other animal species exhibit social behavior. The word "only" makes this statement incorrect and goes beyond the passage's scope.

C) Social behaviour in some species of birds increases the odds of survival in an unsafe world.

• The passage details various social behaviors of flamingos (a "some species of birds").
• It explicitly states that creches are formed "for protection" while parents search for food. This directly links social behavior (grouping, shared care) to increased safety and, consequently, increased "odds of survival" in what can be considered an "unsafe world" (where predators or food scarcity exist). This is a direct logical deduction from the passage.

D) All species of birds set up creches for their chicks to teach thorn social behaviour and loyalty.

• The passage is about flamingos, not "all species of birds." Many bird species do not form creches.
• While creches provide protection, the passage states their purpose is "for protection," not explicitly "to teach them social behaviour and loyalty." The primary stated benefit is protection. The word "all" makes this statement incorrect.

Therefore, C is the most logical corollary as it accurately reflects the protective and survival benefits of the described social behaviors for flamingos, generalizing it appropriately to "some species of birds."