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 ...

Insect life-cycle polymorphism : introduction / S. Masaki and W. Wipking -- Diversity and integration of life-cycle controls in insects / H.V. Danks -- Seasonal plasticity and life-cycle adaptations ...

Each year, warm weather in North America brings the familiar buzzing and clicking of cicadas that have surfaced from their underground burrows in search of mates. Once every decade or so, though, that ...