The life cycle of a frog begins first as an egg, then develops into a tadpole, a tadpole with legs, a froglet and then a full grown frog. For most species of frogs, the entire growth process takes around 12 to 16 weeks to complete.
The human life cycle begins at fertilization, then birth, and progresses through infancy, childhood, puberty, adulthood and aging, ending in death. Every stage is unique and encompasses changes in the human body.
A dog's life cycle begins at puppyhood and spans an average of 12 years, although some dogs live considerably longer. The female dog generally become sexually mature by age one and can begin reproducing after that time if not spayed.
Kittens are heavily reliant on the mother for the first few weeks after they're born, and they cannot see or hear. They learn to walk at three weeks, and learn to respond to other cats. They have full coordination at seven weeks, and can become fully independent by 12 weeks. At 15 years of age, a ca
The life cycle of a lizard ranges from 3 to 50 years. Longevity depends on the species in question.
Seventy percent of snakes begin their lives growing inside of eggs, while the other 30 percent are born live. Some mothers leave, while others stay with their eggs until they hatch. This process is called brooding.
The life cycle of a turtle begins with hatching and then progresses through feeding, maturity, mating and nesting. The life cycle differs slightly depending on the gender of the turtle.
The lifecycle of a spider begins with the laying and hatching of the eggs, moves to the development of the spiders and ends with the spider's reproduction, according to Brandeis University. Spiders are known for their web building, and each spider species uses its webs to catch prey, although many s
Domestic pigs grown for food are selected for the slaughterhouse after 5 months and therefore have a short life cycle. Feral hogs, however, typically live four to five years, with some lasting up to eight years.
The life cycle of a duck includes nesting, brood rearing, post-breeding, molting, fall migration, winter migration, spring migration and pre-nesting. These cycles occur yearly until death, with most domestic ducks living no more than seven years.