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In February, binoculars and camera in hand, we watched and photographed as she finished the intricately woven and structurally sound nest, carefully and lovingly camouflaged with lichen. On February 20 it appeared that her beautiful nest was complete and incubation of two navy bean-sized eggs had begun. Mama hummingbirds typically sit on their eggs for 14 to 19 days. About 18 days later, I saw her perched on the edge of her nest, apparently regurgitating a slurry of nectar from nearby native currant flowers and partially digested insects or spiders high in protein into her babies. At this early stage she would feed both nestlings hummingbirds almost always have twofly off, and come back with more food within 60 seconds or so. Later that week we saw her offspring for the first time, with their dinosauric he and just the start of future feathers.


This depends on when they live summer or winter. It also varies a lot among individuals just like it does it humans. In the summer, adults live from 2 to 6 weeks in captivity, and probably about that long in the wild. The ones that migrate live longer, from August or September to about April although a lot die before this.

These times I told you only refer to the adults. It takes them about a month to go from the egg to adult stage, so we should really add four weeks to those times.

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After all, we count human childhood in the human lifespan! They only lay one egg at a time, but they can lay many in a single day. I have no way of knowing how many eggs wild females lay. The average is aboutbut this varies from year to year. They lay fewer in hot, dry summers. Adult monarchs live for anywhere from 2 to 6 weeks, and females lay eggs and males mate throughout most of this period.

They use a combination of visual and chemical cues to find milkweed.

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Once they land on a plant, they use sensory organs on their feet and he to tell them if it is a milkweed, and probably the quality of the milkweed. Females will wait a long time to find milkweed. Sometimes in our cages we keep mated females without milkweed, and VERY rarely, we will find a few eggs on other plants or the sponges we use to feed the females. The caterpillars then die. We have done studies here at the University of Minnesota of females that were overwintering in Mexico. The studies have shown that having milkweed around actually speeds up egg development. In some butterfly species you can see these testes from the outside, but not monarchs.

At no time between egg fertilization and death do all body parts break down. Many of the features unique to the adult—such as the wings, eyes, internal reproductive organs, and long antennae—are actually present as tiny clusters of cells even in the egg. These cell clusters grow and differentiate throughout the larval stage. During the pupa stage, they rearrange and develop further. For example, the adult compound eye forms from cells that were behind the larval eyes.

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Some body parts, especially muscles, degenerate at the end of the larval stage and are replaced by new muscles that allow the new kinds of movements associated with the adult stage. Larvae move very differently than adults, and thus most of their muscles are completely broken down by enzymes early during the pupa stage. These broken down muscles do form a liquid within the developing pupa.

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I try to video the whole cycle. I notice that, during the first week of a chrysalid, it looks like it is empty, except at the top. This is why I have always wondered if the skin, itself, of the chrysalid, plays a ificant role in the formation of the wings and other organs. I think this because of the immediate visible pattern of the wings, etc. It appears that the wings grow from the skin inward.

Is there a lining against the inner skin that begins to form the wings? A: The skin or exoskeleton of the chrysalis is shed, in a way similar to that in which the exoskeleton of each of the larval instars is shed. While it may appear that the wings and other organs grow from the skin inward, they are actually present in the larva, and grow continuously in the last larval instar. During the wandering stage after the larva has stopped eatingthe tracheal system that fills the wing veins develops, and as the larva pupates, the wing assumes the shape that it will have in the adult.

We are in Louisiana and trying Hot mature babys ready to get laid have monarchs breed all winter. Some of the monarchs are emerging but their wings are slightly bent. Is it because it is cold? However, if you are breeding monarchs year around, you definitely run the risk of having the protozoan parasite Ophryocystis elektroschirra OE infect your monarchs, and OE also can result in deformed wings. To find out how to have your monarchs tested, you can go to the website www. This project is a citizen science project run out of Dr. Blood flows through the wings even after the wings have hardened.

Blood flows from the thorax into the wings, and then back into the thorax. They are genetically programmed to do things like fly, find food, and migrate in the case of monarchs. In some ways, this sounds like a great thing. We need to learn how to talk, walk, read, etc, but think of the flexibility we have in determining what we do with our life. Both of them mean the pupa stage of a butterfly.

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I think you should write a poem about all of these words! The color itself comes from cardenolides in the milkweed that larvae eat. However, there were no differences in two experimental groups: males that were kept with females and allowed to mate naturally, and males that were kept in a cage without females.

I have also seen no difference in females. Monarchs go through 4 or 5 generations each year, and only one of these migrates. The migratory generation is the last one of a year, so it is probably the largest generation, however. The monarchs that will migrate to Mexico do not mature completely before they migrate.

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Even though they look just like normal adults, they are not sexually mature. They are sort of like a juvenile, or pre-puberty, person. This happens at some point while they are developing as larvae and pupae, when they are exposed to shortening days and cooler nights.

When the butterflies are exposed to lengthening days, and possibly warmer temperatures, their reproductive organs begin to mature. I really like the 2x2x2 foot cages that Bioquip sells. Or, you could make your own cage check out the directions in our curriculum guide. We make cages in our lab from plywood and screen that work pretty well, and the directions for these are in our guide.

You just need to be a little handy with a staple gun, sewing machine, and screw driver! Monarch Butterflies. Life Cycle.

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Contributed by Dr. Karen Oberhauser Includes: longevity birth and growth reproduction heredity Q. How long do adult monarchs live? How many inches are the eggs of a butterfly? They are about the size of a pinhead. How many inches is that? How many eggs do monarchs have at one time?

What is the most eggs a monarch has ever laid?

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Do the butterflies die after they lay their eggs? How do they know which plant is a milkweed? Can a female monarch have babies without the help of the male? No, a male and female monarch must mate before the female can lay fertile eggs.

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Does she lay them on any plant she finds? If that is so, what becomes of the caterpillars? How long are the caterpillars larvae?

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They grow from being less than 1 centimeter cm to about 5 cm. Can you tell the difference between a male and female monarch when they are in the larval state? How do the gold spots on the chrysalis form? Q: Does any structure of the caterpillar survive in the chrysalis? Is it a gelatinous mass? Q: Does the skin of the chrysalid play a ificant role in the formation of the wings and other organs?

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Q: Can cold temperatures cause monarchs to emerge with deformed wings? When the newly emerged adult monarch pumps fluid from the abdomen into the wings, does the fluid remain a liquid in the veins or do the veins of the wings become solid after awhile? How does a monarch butterfly know how to fly right away when it hatches out of its chrysalis?

Is there any difference between chrysalid and a chrysalis? How is the gold formed in a chrysalis and why? What happens to all of the butterflies who do not mate?

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Do they die sooner or live longer?

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It still helps to know where you can find them, especially since a female American cockroach will hatch about nymphs in her lifetime, and German cockroaches can produce thousands of cockroaches a year.


It is easiest to start by purchasing pheasant chicksas this will give you only one vampire chats two age groups.


Under undomesticated conditions, poultry lay eggs in simple nests, perch in trees and spend much of the day scavenging for feed.


This article is reprinted by permission of Kindplanet.