A Sloths Life Cycle
The sloth is a mammal living in the rainforests of Central and South America,spending most of its time in branches 10 to 30 meters above the ground. There are actually two-toed sloths and three-toed sloths but it is the latter that typifies the classic sloth-like behavior. They have been the objects of scornfor many years - even by the supposedly objective scientific world. They have been called 'lazy', 'stupid', 'filthy' and a 'failure' in evolutionary terms because oftheir incapacity to struggle with speed and strength. This kind of discrimination has continued for centuries - especially in western countries.
- The common ancestor of the two existing sloth genera dates to about 28 million years ago, with similarities between the two- and three- toed sloths an example of convergent evolution to an arboreal lifestyle, 'one of the most striking examples of convergent evolution known among mammals'. The ancient Xenarthra included a much greater variety of species, with a wider distribution, than those of.
- Sloths are categorized into two types: the two-toed sloths and the three-toed sloth bears. The sloths that are two-toed are slightly bigger in size as compared to the three-toed sloths. But they both share similar features and measure around 23 to 27 inches, which is the size of a dog. They weigh about 17.5 to 18.75 pounds; i.e., 8 kilograms.
Recent biology reports reveal surprising facts about three-toed sloths. They live with half the muscle weight of other animals. Three-toed sloths weigh onlyabout four or five kilograms but their muscle constitutes no more than a quarterof this. This slows them down but it also makes them light enough to be able to climb thin brancheswith great efficiency and thus have less chance of attacked by predators.
Eating and sleeping while hanging from the trees is one feature of their low energy life style. At night, when their body temperature decreases they stop moving altogether and wait for morning. When the sun rises they climb to the top of the tree and soak in the rays of light - recharging by solar energy.
The mother then chews through the umbilical cord, and the young sloth, after its eyes and ears open, clings to the fur of the mother for about five weeks. After it leaves the mother, it reaches maturity in two to three years. In captivity, two toed-sloths have lived more than 20 years; maximum life span is.
Once a week, the three toed sloth slowly climbs to the base of a tree to defecate and pass urine. At first glance, this seems a rather dangerous and stupid habit that unnecessarily exposes them to predators but recent research has brought the reason for this behaviour to light.
By digging a shallow hole, emptying their bowels and covering it with dead leaves they are feeding the tree half the nutrition they took from it by eating its leaves. If they defecated from the top of the tree the nutrients would be scattered and easily washed away by tropical rains. Through this behaviour they are being responsible gardeners in the tropical forests famous for their extremely poor soils. Thus, the sloth feeds and raises the trees that keep it alive. Could that be a lesson in reciprocity for us all?
Another discriminatory myth against the sloth was that they were extremely selective about the type of leaves they ate - only eating from the Secropia species. Now researchers have found that they eat at least 90 different leaf species. Each individual sloth has its own preference - usually one has about eight favorites and lives among those trees. They avoid conflict and competition with others through this diversity and lessen their impact on any particular tree species.
It serves to remind us of one of the greatest minds of the human race,Albert Einstein, (who may well have joined the Sloth Club if he had the chance!).He shared the low impact vegetarian habit of the Sloth, and had this to say about vegetarianism:
'Nothing will benefit Human Health and increase the chances for survival
of Life on Earth as much as the evolution to a vegetarian diet.'
It is unlikely that any other animal typifies symbiosis aswell as sloth. They live through cooperation. Two or three kinds of algae grow among their gray green hair and the color changes to light green when the rainy season arrives to protect them by camoflage. Their thick fur is a paradise for an arthropod. According to one report, nine kinds of moths, four kinds of beetles and six kinds of ticks can be found on a three-toed sloth. The sloth, which weighs less than five kilograms, gives refuge to approximately 100 moths, 1,000 beetles and thousands of ticks.
So the Sloth is not a failure in the history of biological evolution, but rather a very good example of an extremely well adapted creature - it just adapted in a different way. The Sloth has succeeded in living a non-competitive, peaceful coexistence with minimal negative impact on the environment. They typify a renewable, recyclable lifestyle under the canopy while other mammals came down to the ground to compete in a struggle for existence according to the slogan 'faster, bigger, stronger'. Compared to the greedy, destructive, violent ways of humans - they are true saints.
The lifestyle of the Sloth has so many lessons for human survival in the 21st century. If we continue to promote the dominant paradigm of infinite growth with our 'faster, bigger, stronger' behavior; the economic system pushing mass-production, mass-consumption and a scientific, reductionist view of nature it is clear that we will not survive in the next millennium.
What Is A Sloths Life Cycle
Our future is possible only if we become sloth-like.
We only have a future as ‘sloths’.