Animal Biology Research Paper
It is apparent that chameleons are remarkable animals due to the fact that they possess various abilities which many other animals do not. The one ability that outstands the most from the rest is the ability to change color. Ever since the discovery of chameleons, many scientists have elaborated hypotheses as to how they are able to change color. The theory that has been adopted by many researchers and animal enthusiasts has been that chameleons change color due to the expansion of small pigment-filled sacs called chromatophores. This mechanism/technic is seen in various animals such as those within the Mollusca phylum (e.g. squid, cuttlefish, octopi). This research experiment gives rise to the truth as to how
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The symmetrically triangular s-iridophores, hence the name, were found to be in the superficial part of the chameleons’ skin; male chameleons showed to possess a more developed layer of this crystal, whereas female and juvenile chameleons possessed an underdeveloped form of these crystals. The more asymmetric rectangular d-iridophores were found to be located in the deeper part of all female, male, and juvenile chameleons’ skin.
The drive to fully understand how these guanine nanocrystals influence color change in chameleons lead the researchers to extend their research. It was addressed that the s-iridophores were able to relatively change the distance between one another, whereas, for the d-iridophores, were more fixed when compared to the s-iridophores. It was observed that s-iridophores that appeared to be positioned at closer proximities to each other expressed the color blue, and sections of the skin where the iridophores were positioned further apart expressed the color red (usually when males are excited). After disproving the initial hypothesis, the experimenters quickly formulated another cause and effect relationship between the role of the s-iridophores and color change. The researchers hypothesized, for a second time, that chameleons modify/move their guanine reflective crystals to a
Comb jellies are unique and fascinating creatures that vary in shape, color, and size. Despite this, Dr. Browne and his colleagues grow comb jellies to assist with their studies of medicines and other forms of lives. As comb jellies are delicate creatures that require much energy, Dr. Browne provides them with tanks that exchange water and feed the jellies constantly to maximize their lifespan and fertility. With the comb jellies, Dr. Browne is able to gain much knowledge on genetic systems and other researches such as the origins of bioluminescence and treatments for diseases.
The xanthommatin that was found in the brown eyed fly was much more than what was in the wild type, this is because the pteridine pathway that creates all the other pigments is blocked so only the brown pigment is produced. In the rosy eyed fly it was found that the pigments isosepiapterin, sepiapterin, drosopterins, and xanthommatin are the same as in the wild type; the pigments biopterin and isoxanthopterin are more than in the wild type; the 2-amino-4-hydroxypteridine is much more than in the wild type; and the pigment xanthopterin is less than in the wild type. The rosy pigment is made when the enzyme xanthine dehydrogenase is blocked, this causes more to go to the other pigments making the eye appear
eyes). They can also change the size of their melanophores to adjust colors slightly, giving them an
One of the adaptations the the Leopard gecko has is its defence mechanisms. The Leopard gecko is able to cut portions of its tail off in order to distract predators while they make their getaway. If a predator catches it by its tail the gecko can release the part that is captured. And while the tail is disconnected it wiggles around for a few minutes as another way to distract the predator. Its tail will grow back in a month or so, but the tail will not look the same as it did before.
The epidermis type of this animal is that their skin is porous. Fascinating facts about the axolotl is that they can only be located
To get an idea of the shape and characteristics of a mature Florida panther, picture a large cat that has no spots and consist of mainly one color. Florida panthers all consist of a solid tan body with a dark brown streak down their spine. The tip of the tail, behind the ears, and side of nose are all black, giving the panther some key characteristics to remember it by. Kittens of this species start of being grey with an arrangement of brown or black spots. On the tip of the tail unlike the mature panthers, they have five rings that fade and become invisible by the six months of age.
The materials needed for this lab were: a light microscope, lamp (if needed or available), microscope slide, coverslip, tweezers, preserved insect leg (or a parakeet’s
Lead Geneticist Bryan Jennings of Boston Medical Center says that ‘the possibilities could be endless, with proper research. For now, we’re starting small. Instead of hearts or blood or digestive organs, we are testing eyes.’ Mantis shrimps are creatures found in warm, shallow water. The shrimp’s most valuable quality for genetic purposes are the sixteen color-receptive cones in it’s eyes. Essentially, the color spectrum visible to humans is developed by just three color-receptive cones over the retina. That means billions of colors humans miss that mantis shrimp can see. The new process involves surgery that extracts all of the cones in humans, and replaces them with all of the mantis shrimp
The Black Panther breathes just like the humans. Panthers use their lungs to breathe in and out. The breathing starts at the nose and their mouth. It then, travels down to the back of their throat, into the trachea. The trachea is a long tube in the panther’s neck that goes all the way through their chest, that carries air out and into their lungs. After that, the trachea divides into smaller passages called bronchial tubes. Bronchial tubes, are the tubes that carry air into the lungs of the panthers. Then, the bronchioles end in balloon air sacs called alveoli. Alveoli are surrounded by a group of blood vessels that are called capillaries. Black Panther’s capillaries connect arterioles. Arterioles, which are small blood vessels in the panther’s
Have you ever wondered why the fourteen inch reptile, know as the chameleon can camouflage? If so, I'm here to tell you the Legend of Giroud. To begin, the chameleons are the original conquerors of the North America. They lived in peace in a calm environment, but then, things twisted in another direction. Their prey started to adapt to the chameleons strategies, and left the chameleons in a sticky situation. So the chameleons could no longer catch their prey to survive. Weakened by the food shortage, the chameleons became ill, weak, and started to die off. It started to decrease their population. A brave chameleon decided to help his fellow chameleons, to persevere this challenge. A chameleon in the name of Giroud stepped up to the plate. Let's jump in into Giroud's brave and heroic action,
Males of this species have been known to display a variety of colours and patterns in order to attract mates. However the extravagance of their colours can be determined on the selection pressures of their environment.
Significant changes in internal organs development can be revealed from larval and pupa stages in complete metamorphosis. According to [1] between day one to day thirteen, the chrysalis shows development of numerous aspects of morphology which include wing veins, midgut, flight
Furthermore, color vision is not only beneficial in the survival of animals in the wild, but also the quality of life of animals in captivity. If an animal’s color vision is able to be determined, then enrichment, diet, and exhibit design can all be modified in a manner that provides the greatest mentally stimulating environment for the perception of that one individual. Ultimately, color vision is an
The main goal for many agricultural producers across the country is to annually improve the quality of their stock. For certain companies such as Cargill and JBS who are two of the largest protein distributors across the globe, an improvement for their stock could be reaching their end point faster. For other operations involved in the purebred or show aspect of the industry improving the quality could mean producing better structured animals who are larger framed.
In evolutionary terms colour and the way it is perceived is an important aspect. Sumner and Mollon (2000a) conducted research looking into the photopigments and the detection of targets. They found that the L/M subsystem provides an advantage for the detection of fruits and leaves. This led them to their conclusion that finding these foods may have been an essential selective advantage in the original development and maintenance of primate trichromacy, and thus the process of colour perception can be beneficial to primates. Despite having the same visual system, the research is problematic as it was conducted on animals, and thus the findings may not be the same when applying it to the human concept of colour vision. Further support towards the evolutionary basis of colour perception comes from Bompas, Kendall and Sumner (2013) who found that normal trichromats made faster responses and fewer errors than their colour deficient competitors. This shows that colour is an important aspect and both of these research findings combined suggest enhanced survival due to the way in which colour is