Home >>

Life Cycles of a Butterfly, Mosquito, Dragonfly & Frog
Published By joeldgreat on 2011-04-28 199 Views

Living things go through a sequence of developmental stages. Different kinds of animals have their own unique way of reproducing. They have different life cycles. Only three percent of all of all animals give birth to live offspring. Most animals lay eggs. Animals need to eat, grow up in a safe environment, and reproduce. These are necessary for the growth and development of animals and for their kind or species to survive.

Life Cycle of a Butterfly

Butterflies lay eggs on leaves. These leaves serve as food for the young once the eggs hatch. There are different kinds of butterflies. Some lay about a dozen eggs, while others lay hundreds of eggs. Some eggs are green, some yellow, others white. The eggs differ in size and shape, too. Some eggs are oval, others round or cylindrical. Some eggs hatch in a few days, while others hatch within several months. The larva stage is next. The butterfly at this stage is called caterpillar . This is the main eating and growing stage. The caterpillar eats all the time. When it reaches its full size, it spins a body cover around itself. The pupa stage is next. By this time, the insect is already completely covered. This protective covering or container is called chrysalis (it is known as cocoon for the butterfly's relative, the moth). The word chrysalis is also used to refer to the butterfly pupa itself.

The pupa does not move. From this stage, the insect transform into the final stage. The adult stage begins when the insect comes out of the chrysalis. It pumps blood into its wings until the wings become straight and dry.

The butterfly is an example of an animal that goes through what is called complete metamorphosis , having four distinct stages in its development.

Life Cycle of a Mosquito

A mosquito lays from one hundred to three hundred eggs at a time. Mosquitoes usually lay eggs in stagnant water. This means water that is standing still, or not flowing. Water in flower vases, tin cans, old tires and canals are examples of stagnant water. A mosquito egg hatches after one to two days into a larva called wriggler . A wriggler jerks it body up and down the water. It eats tiny plants and animals that live in the water. In about ten days the wriggler changes into a pupa . The upper part of the pupa is round while its abdomen is like a curved tail. The pupa rolls and tumbles in the water. In about four days the pupa becomes and adult mosquito.

Life Cycle of a Dragonfly

Dragonflies are found near freshwater. The female dragonfly deposits her eggs in the water or places them inside the stem of a water plant. The egg hatches into a wingless larva with a thick body, big head and mouth. This larva is called nymph . The nymph breathes by means of gills. It remains in the water for one to five years. It eats other insects and small water animals. While developing into an adult dragonfly, the nymph molts (sheds its skin) about twelve times. Then the nymph leaves the water and climbs a rock or tall grass where it sheds its skin for the last time and becomes and adult . And adult dragonfly lives for a few weeks or months.The metamorphosis of a dragonfly is said to be incomplete.

Life Cycle of a Frog

Frogs lay their egg cells in water. Some frogs lay a few hundred egg cells held together by a jellylike substance. The fertilized eggs may develop into tadpoles within three days to three weeks. At first, a tadpole looks round and has a long tail. It has gills like a fish so it can breathe in the water. It swims around and eats plants or even frog eggs. Later on, hind legs appear. Then the lungs start to function, and front legs appear. The tadpole loses its gills before it changes into a frog . The newly develop frog is small and still has a tail. After sometime, the tail disappears and the frog will leave the water now and then to live on land. It will take several months or years before the frog become able to reproduce.

note: originally posted at Exposeknowledge.com under the same author.

Post Comment Comments (0) Report This

More Articles Specially Recommended for You:

How to Check a Plagiarized Content

This is a very simple way on how to check if your article is plagiarized or copied by other person. A good way to check if other's work is p

Written By : joeldgreat
How to Cope Stress with Vitamin C

Everyday life can be tiring, physically as well as emotionally. Physical stress is common among those who do hard work for long periods. Vitamin

Written By : joeldgreat
Understanding the Difference between Computer Software and Hardware Technicians

My simple tips on how to distinguish a Software technician and Hardware technician. One can also read which of the two jobs best suited for you.

Written By : joeldgreat
How to Survive the College Life

College life can be tough. Here is some of my tips on how to survive it.

Written By : joeldgreat
How Does a Radar Works

Explaining the concepts behind the radar system and how it forecasts weather. Long ago, people tried to make weather forecasts based on folklore

Written By : joeldgreat
Urban Exploration: trespassing or adventure - the stuff you really should know before you urbex

What is Urban Exploration? Urban Exploration or 'Urbexing' is, put simply, an interest in deserted, abandoned and derelict

Written By :10prestoncourt
Sourcing Raffle Prizes and Auction Lots

Holding a raffle or auction is a great way to raise funds for your cause. However, you need to go about it in the right way. Who t

Written By :10prestoncourt
Event Publicity tried and tested ways to reach the right audience

You don't need to spend lots of money to publicize your event, you just need to follow some tried and tested methods. Establish

Written By :10prestoncourt
How to create eye-catching event flyers

In a world where we are bombarded with information everywhere we go, it is very easy to overlook a neatly typed up event poster. 

Written By :10prestoncourt
Howtoee Review

Howtoee is a new revenue sharing site. It currently pays $5 per article and gives 100% revenue from Google Adsense. The site looks clean but I a

Written By :11tatic


LogIn or SignUp! now to post your comments on this article.