The word mega in megafauna (fig 1: megafauna) means huge, and fauna means animals so when you put it together it means huge animals. Most megafauna were over 40kg and 30% bigger than their relatives who are alive today. They’ve existed for over 11 million years, but then disappeared in a mass extinction 46,000 years ago (Mandy McLauchlan, 2016). There are several ideas of how they became extinct which includes the ill, kill and chill factors. Ill being a disease which infected the megafauna and ultimately killed them off.
Honey Bees have been on planet Earth for more than 100 million years. Each year the bee population has grown and multiplied, until, recently. “In the last half decade alone 30% of the national bee population has disappeared and nearly a third of all bee colonies in the U.S. have perished. Though the rate of bee depopulation is growing each year, 42% more last year than the year before, even at the current annual rate the estimated monetary loss is a colossal 30 billion dollars a year.” (8) A new disease of epidemic proportions is sweeping honey bee populations all over the world.
In recent years, there has been an ongoing debate as to what caused the extinction of the Neanderthals around forty thousand years ago. Some researchers speculate that Neanderthals did not develop sufficient tools that would allow them to gather and hunt food efficiently while others speculate that early modern humans introduced deadly pathogens into Neanderthal populations which led to their extinction. However, researchers led by zooarchaeologist Jamie Hodgkins have found that frequent and lengthy glacial periods may have led to the extinction of the Neanderthals. They hypothesized that glacial periods may have reduced the quantity of prey that the Neanderthals hunted therefore they were unable to intake the required amount of food to survive.
Whaling fleets killed “an estimated 1 million sperm whales between the 18th and 20th century and hundreds and thousands of almost every type of baleen wales such as the right and bowhead whales” (McLendon). Bowheads have been hunted for nearly 400 years, eventually reducing their population to about 8% of its prewhaling average. The North Atlantic right whale now numbers around 300, and the population is nearly extinct. The decimating population of various species of whales will have fatal effects
Additional to his prediction, he furthermore categorizes the jobs in the future into four types: “jobs today that humans do, but machines will eventually do better”, “current jobs that humans can’t do, but machines can”, “jobs that only humans will be able to do at first”, “robot jobs that we can’t even imagine yet” (305). Generally, Kelly upholds an optimistic view toward the unknown future, believing that new possibilities of human beings will then be revealed. As he claims, “[let] the robots take the jobs, and let them help us
This correlation can be demonstrated by numerous examples revealed. For instance, Martin stated the Clovis people were the earliest humans in America (51). With the incorporation of these beings, two-thirds of the large animals underwent a sudden extinction. Likewise, there are many other patterns and trends recognized with the introduction of the human species. On the contrary, Martin found no trends of other factors that may result in extinction.
This butterfly used to have a population size of 250,000 (Top 10 US Endangered Species). By the year 2006, the number dropped to only 45 butterflies (Top 10 US Endangered Species). Due to conservation efforts, the population number has steadily risen to 150 individuals. However, it is still considered critically endangered (Top 10 US Endangered
Fossil fuels Fossil fuels are NOT a renewable energy resource it will finish up one day As once we 've burned them all, there isn 't any more, and our consumption of fossil fuels has nearly doubled every 20 years since 1900. This is a particular problem for Oil, because we also use it to make plastics and many other products Coal, Oil and Gas are called "fossil fuels" because they have been formed from the fossilized remains of prehistoric plants and animals.