Complete metamorphosis is the total change of an insect that goes through four distinct stages. Those stages are egg, larva, pupa and adult.Know More
The time an insect spends in each stage varies depending on the insect. In the egg stage, the insect is an embryo waiting to hatch. During the larva stage, it hatches and usually begins to eat and grow. In most cases, insects look distinctly different now than they will in the final stage of metamorphosis. Caterpillars are the larva stage of butterflies.
After the larva finishes growing, it enters the pupa stage and forms a cocoon. There, it waits for its body to redevelop for the final stage when it becomes an adult.Learn more about Zoology
Female birds turn the end of the oviduct inside-out to lay an egg and allow the egg to emerge. A bird currently laying an egg can be identified by a rhythmic moving and opening and closing of the bill, though time varies by species from a few seconds to a few minutes. After copulation with a male bird, a female bird can store sperm in tubules.Full Answer >
Most animals are made up of more than one cell, have cells that group into tissue, reproduce sexually, are capable of movement and ingest other organisms to obtain energy. There are exceptions to many of these characteristics, however.Full Answer >
Platyhelminthes are small worms with flattened body plans and simple organs of seemingly ancient origin. Individual species in this group are called flatworms or tapeworms, indicating their distinct body shape.Full Answer >
The insect with the longest average lifespan is the African mound-building termite queen. The termite queen can survive for 60 years or more and lays about 35,000 eggs daily.Full Answer >