Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

10/30/2012 (2 years ago)

Catholic Online (www.catholic.org)

Vital lesson needs to be learned by dinosaurs' example, scientists say

A new study of the dinosaur era may haveĀ ominous implications for modern man. It claims that the mass extinction of dinosaurs by a massive asteroid was made worse because it destroyed the fragile food chain. There are lessons here that modern man should learn, some scientists warn.

More than 65 million years ago, some claim that a huge asteroid plunged into the earth in Mexico. Many species became extinct, including the dinosaurs, thus ending the Cretaceous Period of Earth history.

More than 65 million years ago, some claim that a huge asteroid plunged into the earth in Mexico. Many species became extinct, including the dinosaurs, thus ending the Cretaceous Period of Earth history.

Highlights

By Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

10/30/2012 (2 years ago)

Published in Green

Keywords: Dinosaurs, asteroid, food system, extinction


LOS ANGELES, CA (Catholic Online) - Some scientists claim that more than 65 million years ago, a huge asteroid plunged into the earth in Mexico. Many species became extinct, including the dinosaurs, thus ending the Cretaceous Period of Earth history.

The food chain at that time was already under tremendous strain before the collision. The ecosystem simply could not cope with the cataclysm, and plant life died off.

Therefore, the continuous exploitation of the Earth's resources could place humankind in the same peril as we stress the planet with mono-crops and hasten the extinction animals, plant life and marine species.

The impact zone of the now-buried Chicxulub crater on the coast of Mexico's Yucatan Peninsula had widespread effect on the world's ecology.

These scientists examined a computer model in order to see what happened up and down the food chain. They found the structure of North American ecosystems made the extinction much worse than it might have been.

"Our study suggests that the severity of the mass extinction in North America was greater because of the ecological structure of communities at the time," Jonathan Mitchell of Chicago's Committee on Evolutionary Biology says.

Reconstructing terrestrial food webs for 17 Cretaceous ecological communities, seven of these food webs existed within two million years of the Chicxulub impact. Ten had come from the preceding 13 million years.

The computer model showed how disturbances spread through the food web and developed the simulation to predict how many animal species would become extinct from a plant die-off.

"Our analyses show that more species became extinct for a given plant die-off in the youngest communities," Mitchell said.

"We can trace this difference in response to changes in a number of key ecological groups such as plant-eating dinosaurs like Triceratops and small mammals."

Environmental and biological factors meant food webs were already under strain before the asteroid hit. A large scale disturbance was more likely to have an effect on the survival of species.

"Besides shedding light on this ancient extinction, our findings imply that seemingly innocuous changes to ecosystems caused by humans might reduce the ecosystems' abilities to withstand unexpected disturbances," Mitchell says.

"It is therefore critical that conservation efforts pay attention to ecosystem functioning and the roles of species in their communities as we continue to degrade our modern ecosystems."

.

---


Pope Francis: end world hunger through 'Prayer and Action'


Copywriter 2015 - Distributed by THE NEWS CONSORTIUM

Pope Francis Prayer Intentions for July 2015
Universal:
That political responsibility may be lived at all levels as a high form of charity.
Evangelization: That, amid social inequalities, Latin American Christians may bear witness to love for the poor and contribute to a more fraternal society.



Comments


More Green

OMINOUS DEVELOPMENT: Massive chunk breaks off world's fastest melting glacier Watch

Image of It comes as ominous news to coastal cities and nations around the world vulnerable to sudden sea level rise . the world's fastest melting glacier had a massive chunk break off in over two days, setting an unwelcome record.

By Catholic Online (NEWS CONSORTIUM)

It comes as ominous news to coastal cities and nations around the world vulnerable to sudden sea level rise as the world's fastest melting glacier had a massive chunk break off in over two days, setting an unwelcome record. LOS ANGELES, CA (Catholic Online) - ... continue reading


First for insect kingdom: Ants able to 'self-medicate' when unwell Watch

Image of It was also learned that the infected ants would also either choose to eat the poison as often as normal food, or only a quarter of the time, showing that the ants were

By Catholic Online (NEWS CONSORTIUM)

The common ant is typically thought of as being an example of the "hive mind" - acting in concert with their respective colonies, without free will. Researchers have now learned that ants are able to feel when they are sick or unwell - and self-medicate themselves. LOS ... continue reading


WORLD-WIDE POWER OUTAGE: Is a massive solar flare in our near future? Watch

Image of [Photo by: Solar Flare/BENSOW]

By Atarah Haely (NEWS CONSORTIUM)

The world is highly dependent on electricity, even more so now than ever before. A massive solar storm can leave the Earth in bad shape and cause a global-scale of darkness. We must always be ready for such an event to prevent further panic and havoc. MUNTINLUPA, ... continue reading


World's oldest 'first flower' discovered in Spain's mountainous regions Watch

Image of

By Hannah Marfil (NEWS CONSORTIUM)

An ancient plant fossil, of what could be claimed as the world's oldest flowering plant, was unearthed in Spain. According to a new study in the online journal, Proceedings of the National Academy of Sciences, the plant, which is approximately 125 million to 130 ... continue reading


Biggest oarfish EVER: Latest specimen washed ashore on Catalina Island was at least 24 feet long Watch

Image of Oarfish washed up onshore on California's coasts in recent years are believed to have been sick, disoriented because of a storm or even responding to underwater seismic activity.

By Catholic Online (NEWS CONSORTIUM)

Oarfish, deep-sea denizens, have been washing up on the resort island of Catalina Island with surprising frequency. Oarfish washed up there June of 2013 - and now, a dead oarfish full of krill washed up there again on Monday. Experts say the more recent ... continue reading


Three African nations will be among the 10 most densely populated in 2050, report says Watch

Image of Many African countries will be rising in the ranks over the next 30 years due to life-extending medical advances. The study finds that most national populations will double in 40 countries, chiefly African.

By Catholic Online (NEWS CONSORTIUM)

The Washington-based Population Reference Bureau has recently published a projected study of what the most populous nations in the world will be in the year 2050. Because of high fertility rates and improved life expectancy, three African nations - Nigeria, ... continue reading


NASA tests 'Ferrari of rocket engines' set to launch astronauts to Mars Watch

Image of

By Talia Ramos (NEWS CONSORTIUM)

The RS-25, for a trip to Mars, has been tested by NASA. According to reports, the engine was more powerful than the top technology we currently use in automobile and jet industries. MUNTINLUPA, PHILIPPINES (Catholic Online) - CNET.com reported that the RS-25 engine is ... continue reading


New 'toddler' planet discovered Watch

Image of Jupiter

By Talia Ramos (NEWS CONSORTIUM)

After success with the flyby on Pluto and the discovery of the Earth-like planet thousands of light-years away, a planet much like our Jupiter has now been observed by researchers. Reports explain that the new planet is 20-million-years-old, a relatively young planet ... continue reading


An entire year of human resources consumed in a shocking 9 months Watch

Image of Humans rapidly deplete the Earth's natural resources.

By Linky C. (NEWS CONSORTIUM)

Nine months was all that was needed to consume an entire year of human resources. The year 2015 is far from being over and yet a year worth of natural resources have been consumed since January 1, according to reports. MUNTINLUPA CITY, PHILIPPINES (Catholic Online) - ... continue reading


Batten down the hatches? This year's El Nino described as 'significant and threatening' Watch

Image of The Western Pacific will see more and stronger typhoons, which may explain why there have already been five super typhoons there in 2015. Usually, there is only super typhoon by this time this year.

By Catholic Online (NEWS CONSORTIUM)

The weather system of El Nino is building steadily, and many in the Weather Bureau predict it will be the strongest since 1997, which flooded many parts of California and triggered fires in Australia. The eastern Pacific Ocean is significantly warmer than ever ... continue reading


All Green News

Newsletters

Newsletter Sign Up icon

Stay up to date with the latest news, information, and special offers

Daily Readings

Reading 1, First Thessalonians 4:13-18
13 We want you to be quite certain, brothers, about ... Read More

Psalm, Psalms 96:1, 3, 4-5, 11-12, 13
1 Sing a new song to Yahweh! Sing to Yahweh, all the ... Read More

Gospel, Luke 4:16-30
16 He came to Nazara, where he had been brought up, ... Read More

Saint of the Day

Saint of the Day for August 31st, 2015 Image

St. Raymond Nonnatus
August 31: Raymond was born at Portella, Catalonia, Spain. He was delivered ... Read More

Inform, Inspire & Ignite Logo

Find Catholic Online on Facebook and get updates right in your live feed.

Become a fan of Catholic Online on Facebook


Follow Catholic Online on Twitter and get News and Product updates.

Follow us on Twitter