I was discussing why dinosaurs dead with my colleagues in K lab. Of course it’s no relative to our courses or business but it’s essentially relative to the earth where we are living. I told them that dinosaurs were killed by the farts they made and people setting around said,
It’s impossible!
Is it impossible? Let’s have a look.
Questionable numbers
The researchers, led by David Wilkinson of Liverpool John Moores University in the United Kingdom, did their best to get an accurate estimate of how much gas these big dinosaurs would have created, but their answers are still just estimates based on multiple assumptions, they warn.
The greenhouse gas methane is a natural byproduct of the digestive process of plant eaters, especially in herbivores called ruminants (like cows and camels). The researchers suspect that like ruminants, sauropods would have harbored methane-producing bacteria in their intestines to help digest these fibrous foods.
There is currently no way to tell what kind of bacteria lived in the digestive systems of dinosaurs, what gasses they produced, or what those digestive systems would have looked like, but Wilkinson thinks they would have produced methane like today's animals.
They used a mathematical model to determine how much gas these plant-eating giants would have eaten. They extended data on methane production by modern mammals, based on size, up into the reaches of the sauropods.
In their calculations the researchers used middle-of-the-road numbers: 10 sauropods, each weighing 20,000 pounds (9,071 kilograms), could have roamed 1 square kilometer of lush Mesozoic habitats. "We've taken a middle-ground value," Wilkinson said. "We tried to be reasonably conservative."
They found that these 10 sauropods would have contributed 7.6 tons (6.9 tonnes) of methane every year. Expanding this number to cover the amount of land estimated to be hospitable habitat for these animals (about half the land on Earth at the time), the researchers end up with more than 550 million tons (500 million tonnes) of methane produced every year.
Edison' comments
It’s impossible! If people keep polluting into environment it’s impossible for us to live any longer. Instead of dinosaur, I would like to say human-beings are killed by themselves by driving, traveling and consuming. You don’t need to believe or research how did dinosaur die because they had already gone for thousands year. But what we should do and think about is how to reduce the waste we make so that we can leave a healthy earth to our children.
Very true, we need to start looking after our planet more
ReplyDeleteya. We shouldn't suicide by "farting".
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