One of the themes of this “Bird Lore” column is the annual cycle of bird life. The marvels of bird migration, which follow our seasonal changes, result in a wonderful diversity of bird life throughout ...

Birds exhibit a wide variety of fascinating nesting and offspring-rearing behaviors throughout their lifecycle. Against the odds, they protect and guide their young from hatching to leaving the nest ...

There are two basic life-cycle patterns among animals. Many animals have complex life cycles with two or more very distinct stages; metamorphosis is the usual term for the often-radical changes that ...