AP BIOLOGY

Detailed explanation-1: -Instinct/instinctual behaviours need not be learned or practiced. These kind of behaviours are present by birth. Making nest by birds, web spinning by spider, etc., are examples of instinctual behaviour of animals.

Detailed explanation-2: -Both pecking and feeding behaviors are innate. Right: When these baby birds open their mouths wide, their mother instinctively feeds them. This innate behavior is called gaping. Another example of innate behavior in birds is egg rolling.

Detailed explanation-3: -Nest building is an innate behavior in male and female rodents, even when raised in laboratory settings.

Detailed explanation-4: -Nest-building is not just instinctive but is a skill that birds learn from experience, research suggests. University scientists filmed male Southern Masked Weaver birds, in Botswana, building multiple nests out of grass during a breeding season.

Detailed explanation-5: -Nest building is one of the most important activities of birds as the nest not only provides shelter and protection from predators to the birds but also plays an important role in brooding i. egg laying and raising their young ones.