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Transcript of Mr. Sloth
In today's generation there are acts of deforestation which is the main cause of the decreased population the species, the sloth. Sloths are mostly killed by deforestation which leads to habitat fragmentation or loss of habitat. When trees are cut down, Sloths lose their habitat and are forced to move somewhere else. Also, since leaves are sloths main food they will also lose their energy source and if trees are cut down all the time then the food source will be gone as well as the habitat. But it's not just deforestation threats are also from its predators like the Harpy Eagle and the Jaguar and/or the Cat family.
The Evolution of Sloths (Three-Toed Sloth)
Proof Original Species is related to future species
ancestors used to live in North America
Now I live in Central or South America (mostly in the Amazon Rainforest)
I like to live and especially sleep on tall trees found in rain or cloud forest
I prefer to sleep on the fork of a tropical tree
P- A Population is a group of the same species that live in the same area. The population for this species is Sloths and there are thought to be below 100. Today, a sloths niche is important in the jungles of the wild. This is important because when a sloth poops it goes to the ground and does its business and when the poop falls to the ground it fertilizes the plant life around it.
P.V.O.E.S.H.T AND NATURAL SELECTION
Most sloths are threatened by their predators which are The Harpy eagle and the Jaguar but Sloths are mostly affected by Deforestation . Longer claws would be an advantage because they can fight of predators that are coming. With deforestation decreasing the population of sloths and the predators eating them which also decreases the population their claws can fight the predators and it will have a better chance of survivng.
Sloth walking across cleared land
Sloth being eaten by a Predator
V- Variation is the process where there is an change in the characteristic of an animal. In the Sloth Population the ancestor was Megatherium americanum, which went extinct 2.6 million to 11,700 years ago. The sloth came about by a genetic mutation in their genome that caused some sloths to have short claws and other sloths to have longer claws which will allow them to have an advantage.
The variant that would most likely survive is the Sloth with the longer claws. The reason the sloth with the longer claws would win is because if it ever encounters one of its predators they can fight off the predatos with its claws so that it could hurt the animal that is tying to eat them. The sloth with short claws wouldn't have a benefit to the environment because if it was fighting then their claws wouldn't do much damage to their predators and they would have a higher chance of being eaten.
The process repeated 7 times totaling 7 Generations and it took the time it did because the new traits were different and it took a long time show up in the population and for the other sloths to get used to the new traits so at times there were some difficulties. It was also new to the Adaptation just like their new traits that were caused by a mutation in their genes.
- This trait would benefit the sloth in its future adaptation because since sloths are slow and they go to the ground at times they have a better chance of surviving if and when a predator attacks.
-Another characteristic that they can develop is to develop longer claws for grabbing things easier for example If a sloth were to grab a leaf they can easily grasp on to it and this is also a benefit because it will also snatch onto things easier. And they can also protect themselves from predators.
-Another thing they can develop in their new adaptation is larger ears this is a benefit to their new environment because they can sense if a predator is coming or not.
To breathe both Co2 and Oxygen
- This would benefit sloths in their future Adaptation because if Deforestation still happens then they will be able to breathe the Co2 that is in the air. Since animals breathe in only oxygen and release Co2 then it would be bad if they're breathing in what they're supposed to breathe out. Overall if the sloths are able to breathe in Co2 and Oxygen then they wouldn't have respiratory problems
Niche: The niche for the future species is important because since it can obtain more energy by taking in Co2 and Oxygen then it can digest more food and excrete more waste to fertilize the trees and plant life so more of them could grow. Also, with their new characteristics it will let them survive and reproduce so the population could also rise and the sloths can fertilize even more trees.
The future sloth species are still in the same adaptation as they were a long time ago which is the Amazon Rainforest in South America. The new species have been able to live here because they have developed new traits so that they can adjust to the environment.
As you can see, the new species have evolved and share similar bone structures. You can also see the way that the traits have added on along with some of the similar bone structure that was passed down from generation to generation. For example, you can see the claws that developed while maintaining the same shape from the past generations.
Genetics and Molecular Biology
In the Protein, cytochrome c, the future species and the original species you can see there is a change in the sequence. For example, for the species who can breathe both Co2 and Oxygen, you can see that the protein cytochrome c, which allows it to breathe both Co2 and Oxygen has a DNA sequence of ATTC paired with TAAG and in the new species you can see the mutation where it shows ATTC paired with TAAA here you can see that there was a mutation that caused the future species to breathe in Co2 and Oxygen.
Those who survived they will get to reproduce and their baby sloths will develop longer claws and that trait will be passed down from generation to generation. The babies would start off by having short claws that show at the embryonic stage that are like cartilage and then throughout their life it would grow and grow.
Between these two embryos you can see that they are similar but one embryo has developed claws that are like cartilage at first. The one on the left is one who has the normal claws and the mutated sloth with longer claws is on the right
The original and future sloth can be compared anatomatically. Here you see that they share similar bone structures but the one on the bottom is the evolved one which developed longer claws. Also you can see that their back spine is different, this is because the evolved species developed a shell and its back curved so that the back spine can be fitted with the shell. As for the original Sloth its a bit more straighter than the evolved species
Original sloth with normal claws
Mutated Sloth with long claws
Muscles (for faster speed and fighting)
- This new characteristic would benefit a sloth in its new environment because if it is face to face with its predator and the sloth tries to get away the sloths would have a better chance of surviving because it has strength to hold its self and run away and it also has strength to fight other animals. And they would also use it for walking on land and can have an advantage of walking and climbing trees so they don't have to carry much weight throughout their bodies and so their arms carry most of their weight.
Long Ago Sloths suffered from deforestation and its population decreased. Overtime deforestation forced many sloths to find new habitats. Deforestation causes carbon emissions to diffuse into the air and if an animal breathes that they will lack oxygen which will lack energy. If a sloth breathes more carbon dioxide then they will lack a huge amount of energy since they don't eat very nutritious foods except leaves and if they keep inhaling carbon dioxide then they will lose even more energy because animals also get energy from Oxygen. But at the quick pace of deforestation the sloths could not find a habitat fast enough and they were losing energy quick... until a mutation happened! A mutation in their gene allowed them to breathe both Carbon Dioxide and Oxygen. But there was also another problem, Predators were also hunting sloths which also decreased the population but then another mutation happened! A mutation in their gene allowed them to have longer claws which made them fight off the predators. Overtime the Population of Sloths increased and they were able to get used to their new Adaptations.
How did Sloths evolve by Natural Selection?
I can breathe both Co2 and Oxygen and also fight off predators with my awesome long claws!!!
How does the new species, Groy share a common descent?
My new species shares a common descent with the original species because of the structure of the bones in the body. Also this shows that over time a mutation in their gene caused them to add on traits from generation to generation. As you can see each generation carries a trait from the last generation. Between the 2015 and 9879 species you can see that they have similar structures but the 9879 species (Groy)is a bit different because of its back and how its more bent and also the claws from the evolved species is longer.
Sheanne Reazon Period 3
Similar body shape
Simlimar arms and Legs
Similar arm structure one bone, two bone, many bones