The life cycle of a butterfly is one of the most beautiful examples of change in nature. A butterfly does not begin life with colorful wings. It starts as a tiny egg, becomes a hungry…
The life cycle of a pumpkin is one of the most interesting plant journeys in nature. A small, flat pumpkin seed grows into a strong vine, produces large green leaves, forms yellow flowers, attracts bees…
The life cycle of penguins is one of the most fascinating stories in the bird world. Penguins are flightless seabirds that spend much of their lives in the ocean, but they return to land or…
The shark life cycle is one of the most interesting stories in the ocean. A shark begins life as an egg or developing embryo, grows into a young baby shark, learns to hunt or filter-feed,…
The mushroom life cycle is one of nature's quietest but most powerful processes. A mushroom may look like a simple cap and stem that grows after rain, but most of its true body stays hidden…
The life cycle of ticks is simple on the surface, but very powerful in nature. Ticks are small blood-feeding arachnids, not insects. They are closer to spiders and mites than to flies or mosquitoes. Most…
The life cycle of a sea turtle is one of the most remarkable journeys in the natural world. A tiny hatchling begins life under warm beach sand, breaks out of its egg with dozens of…
The panda's life cycle is one of nature’s most surprising stories. A full-grown giant panda looks strong, round, and calm, but its life begins in a very fragile way. A newborn panda cub is tiny,…
The life cycle of salmon is one of nature’s most powerful migration stories. A salmon begins as a tiny egg hidden under cold river gravel, grows through several fragile freshwater stages, adapts its body for…
Enterobiasis is a common intestinal parasitic infection caused by Enterobius vermicularis, better known as the human pinworm. It is not a large or dramatic parasite, but its life cycle is highly effective. The worm survives…
