LIFE CYCLES
All animals pass through different stages of life as they grow into fully developed adults. The first stage is the start of a new life, and for most animals the final phase is when they breed to start the cycle over again. For some animals, such as most mammals, these stages are very similar. For others, such as many insects, every stage is quite different, and involves a complete transformation, or metamorphosis, from the previous stage.
DOG A dog’s life cycle is typical of many mammals, because it starts life as a smaller version of its parents. As it grows bigger, its internal organs develop so it can eat an adult diet, and eventually produce its own young.
FROG Most amphibians, such as frogs, have complex life cycles. A typical frog lays eggs in water, and these hatch out as fish-like tadpoles. The tadpoles develop lungs and legs, and hop out of the water as tiny froglets, eventually becoming fully grown adult frogs.
TURTLE Most reptiles, such as turtles, lizards, and snakes, lay eggs. When these hatch, the babies that crawl out are like miniature replicas of the adults. They live in exactly the same way, and often eat the same foods.
BUTTERFLY Butterflies, like many insects, have two quite different phases in their life cycle. They hatch as soft-bodied larvae that spend all their time eating and growing. Then they turn into winged adults, which do not grow and may not eat at all.
Picture Credit : Google
