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 ...

Life on Earth is incredibly diverse, even when it comes to lifespans. While some animals live for hundreds of years, others only survive for a matter of days. While long-lived animals often get all ...

Jackson, Jeremy B. C. and Coates, Anthony G. 1986. "Life cycles and evolution of clonal (modular) animals." Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, ...

Periodical cicadas have one of the strangest life cycles in the animal kingdom. The 17-year cicadas spend 99.5% of their lives underground in an undeveloped nymph state, which is the longest strictly ...