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 ...

Scientists have pinpointed the 'pace' and 'shape' of life as the two key elements in animal life cycles that affect how different species get by in the world. The findings have important implications ...

From tadpole to frog caterpillar to butterfly and pup to wolf children will learn about the life cycles of animals the different stages of development and the average life spans of a variety of ...

For over 100 years, biologists have wondered why animals display different types of life cycles. Some species, like us humans and most vertebrates, develop directly into a fully formed—yet ...

Female snakes can produce their offspring in several different ways. Many people assume that all snakes lay eggs, but the ...

Bernd Heinrich's Life Everlasting: The Animal Way of Death is a moving exploration of the life and death cycles of the animal kingdom, and how the two cycles intersect. Here, Heinrich details some ...

Analysis of the DNA and proteins of a range of animals has revealed that sperm’s molecular toolkit arose in our single-celled ...

Scientists have pinpointed the "pace" and "shape" of life as the two key elements in animal life cycles that affect how different species get by in the world. Their findings, which come from a ...