About Careers Internship MedBlog Contact us
Medindia LOGIN REGISTER
Advertisement

Rise in Oxygen Levels Gave Breath of Life to Animal Evolution

by Dr. Trupti Shirole on December 23, 2015 at 11:10 AM
Font : A-A+

 Rise in Oxygen Levels Gave Breath of Life to Animal Evolution

The 'explosion' of animal life on Earth may have taken place after slow rise of oxygen, revealed a new study. The UCL-led study suggested that it took 100 million years for oxygen levels in the oceans and atmosphere to increase to the level that allowed the explosion of animal life on Earth about 600 million years ago.

Before now it was not known how quickly Earth's oceans and atmosphere became oxygenated and if animal life expanded before or after oxygen levels rose. The new study shows the increase began significantly earlier than previously thought and occurred in fits and starts spread over a vast period. It is therefore likely that early animal evolution was kick-started by increased amounts of oxygen, rather than a change in animal behavior leading to oxygenation.

Advertisement


Lead researcher Philip Pogge von Strandmann (UCL Earth Sciences) said, "We took a new approach by using selenium isotope tracers to analyze marine shales, which gave them more information about the gradual changes in oxygen levels than is possible using the more conventional techniques used previously. We were surprised to see how long it took Earth to produce oxygen and their findings dispel theories that it was a quick process caused by a change in animal behavior."

The study appears in Nature Communications.

Source: ANI
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
What's New on Medindia
Alarming Cesarean Section Trends in India - Convenience or Compulsion of Corporate Healthcare
Quiz on Low-Calorie Diet for Diabetes
World Heart Day in 2022- Use Heart for Every Heart
View all
News Archive
Date
Category
Advertisement
News Category

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

Most Popular on Medindia

Vent Forte (Theophylline) Noscaphene (Noscapine) Sanatogen Color Blindness Calculator Calculate Ideal Weight for Infants Turmeric Powder - Health Benefits, Uses & Side Effects Blood - Sugar Chart A-Z Drug Brands in India Loram (2 mg) (Lorazepam) Hearing Loss Calculator
This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use
×

Rise in Oxygen Levels Gave Breath of Life to Animal Evolution Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests