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Bearded Dragons > Breeding Bearded DragonsHow do you know if your bearded dragon is pregnant? Female Bearded Dragons can lay either infertile or fertile eggs, depending if they’ve been with a mate or not.
To further complicate matters they are also able to store sperm, which means that they can also develop and lay multiple clutches of eggs. For beardies that have never had a mate, they may develop a clutch of infertile eggs, but this seems to happen more occasionally.
If they have had a mate previously, it seems that they are far more likely to develop and lay infertile clutches, I have one female who now has no mate but has laid eggs 2 – 3 times a year, all infertile.
There are also environmental factors that can stimulate egg development such as seasonal temperature, lighting and brumation.
In short, it’s likely at some time or other your female Bearded Dragon will develop eggs and go through the stages of pregnancy.
You put your hand in the tank and she’ll now all of a sudden start to angle her body towards you or run away from you. After a few weeks of being gravid and just after all the digging starts, her appetite will slow down, she’ll start to avoid food. Remember all that digging and laying eggs takes energy, so she’ll be really hungry afterwards, especially after fasting and will spend more time under the heatlamp to metabolise her food quickly to replace lost energy stores. Please Remember…I am writing from my own personal experiences of keeping and breeding Bearded Dragons for the past 5 or so years. The news that researchers have used cloning to make human embryos for the purpose of producing stem cells may have some people wondering if it would ever be possible to clone a person.
Although it would be unethical, experts say it is likely biologically possible to clone a human being.
Since the 1950s when researchers cloned a frog, scientists have cloned dozens of animal species, including mice, cats, sheep, pigs and cows.


In each case, researchers encountered problems that needed to be overcome with trial and error, said Dr. With mice, researchers were able to use thousands of eggs, and conduct many experiments, to work out these problems, Lanza said.
But with primates, eggs are a very precious resource, and it is not easy to acquire them to conduct experiments, Lanza said. In addition, researchers can't simply apply what they've learned from cloning mice or cows to cloning people. For instance, cloning an animal requires that researchers first remove the nucleus of an egg cell.
What's more, cloned animals often have different kinds of genetic abnormalities that can prevent embryo implantation in a uterus, or cause the fetus to spontaneously abort, or the animal to die shortly after birth, Lanza said.
These abnormities are common because cloned embryos have just one parent rather than two, which means that a molecular process known as "imprinting" does not occur properly in cloned embryos, Lanza said. Problems with imprinting can result in extremely large placentas, which ultimately leads to problems with blood flow for the fetus, Lanza said. The extremely high rate of death, and the risk of developmental abnormities from cloning makes cloning people unethical, Lanza said. In 2007, South Korean scientists altered a cat’s DNA to make it glow in the dark and then took that DNA and cloned other cats from it — creating a set of fluffy, fluorescent felines. It will normally start with you being able to to hear them constantly scraping at the wall. Remember that you want a good depth of substrate with some sort of cover (bark etc…) over the top to allow them to dig a shallow burrow. I still leave vegetation in a bowl every day with a little bit of calcium dusting on it every other day. My information is from my own accounts and should be referenced against other sites & books where possible.


But even putting ethics aside, the sheer amount of resources needed to do it is a significant barrier.
Robert Lanza, chief scientific officer at the biotech company Advanced Cell Technology, which works on cell therapies for human diseases, and has cloned animals. When researchers do this, they also remove proteins that are essential to help cells divide, Lanza said.
Imprinting takes place during embryo development, and selectively silences certain genes from one parent or the other. In one experiment, Lanza and colleagues cloned a species of cattle called banteng, and it was born at twice the size of a normal banteng. Here’s how they did it: The researchers took skin cells from Turkish Angora female cats and used a virus to insert genetic instructions for making red fluorescent protein. Scientists say the ability to engineer animals with fluorescent proteins will enable them to artificially create animals with human genetic diseases. I recommend Sand, Soil and Vermiculite, in equal parts, kept moist to retain it’s shape.
In mice, this isn't a problem, because the embryo that is ultimately created is able to make these proteins again. Then they put the gene-altered nuclei into the eggs for cloning, and the cloned embryos were implanted back into the donor cats — making the cats the surrogate mothers for their own clones. But primates aren't able to do this, and researchers think it may be one reason that attempts to clone monkeys have failed, Lanza said.




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