World
Land animals diversify faster than those in water
New York: Animals living on land proliferate more rapidly than their aquatic counterparts, says a new study.
For example, among vertebrates, there are only six species of lungfish and only 25 crocodilians — but roughly 10,000 birds and 9,700 lizards and snakes.
This study that looked into the diversification of vertebrates suggest that as far as variation in species numbers is concerned, habitat is a more important variable than climate or metabolic rate.
“I found that most variation in species numbers has a simple explanation: Groups living on land proliferate more rapidly than those in water,” said John Wiens, professor at University of Arizona in the US.
Previous studies have hypothesized a connection between terrestrial habitats and higher rates of diversification, but none had performed a quantitative analysis to test the idea.
To address this question, Wiens calculated the net diversification rates for 12 major vertebrate groups.
The net diversification rate is similar to the number of species in a group divided by its age.
Using this approach, Wiens was able to compare how fast species within each clade (a group with a common ancestor) were proliferating.
“An example of a clade with a high net diversification rate is birds, which, on a timescale of hundreds of millions of years, are a relatively young group. Since they are both young and have many species, their rate is relatively high,” Wiens explained.
“In contrast, sharks and rays have a smaller number of species and they are a much older group, so they have a lower rate,” Wiens noted.
The study was published online in the journal Biology Letters.
Lucknow: Vishal Singh, a renowned social worker from Lucknow, also known as Foodman, has once again made India proud. He was honored by the Happy Hands Gloves Cooperative Limited Company in Korathai, Thailand, for his work with the Hunger Free World Mission.
The Hunger Free World Mission’s meeting was held in Korathai, Thailand, under Vishal Singh’s leadership. Representatives from several countries, including Mr. Raja Dwivedi (Managing Director of Happy Hands Gloves Limited), Thailand Coordinator Mr. Raja Mishra, and member Mr. Varun Singh, attended the event.
Under Vishal Singh’s leadership, the attendees took a pledge to work together toward creating a hunger-free world.
Speaking on the occasion, Vishal Singh explained that the main goal of the Hunger Free World Mission is social participation. He said the mission is not just about feeding people but also about meeting other basic needs of those who are struggling. The mission focuses on helping families of terminally ill patients in hospitals by providing food and shelter. It also works to fulfill essential needs like education, jobs, and care for the elderly.
For the last 16 years, the Vijay Sri Foundation has been providing free services, benefiting thousands of people. Vishal Singh highlighted that the mission aims to gain global recognition like other organizations such as WHO, WWF, and Red Cross, which work for social causes.
During this meeting, Vishal Singh was appointed as the Chairman of the Hunger Free World Mission by representatives from various countries. They also discussed holding regular meetings in different countries to push the mission forward.
Business tycoon Dr. Abhishek Verma has also supported this humanitarian mission, vowing to promote the idea of “Seva Parmo Dharma” (Service is the highest duty) worldwide. Vishal Singh praised him, stating that people like Dr .Abhishek Verma inspire others to work for the betterment of society.
Recently, Romania’s Ambassador, Mr . Daniela Sezonov Ţane, invited Vishal Singh to the Romanian Embassy in Delhi, where they discussed the mission in detail. Impressed by his humanitarian work, she honored Vishal Singh and invited him to Romania to take the mission forward .
Food man Vishal Singh has been serving the people of India for the past 16 years. Through the Vijay Sri Foundation, he provides free meals to cancer patients & their families ,shelter, and education for women & children along with running free old-age homes in Lucknow.
In addition to his humanitarian work, Vishal Singh also addresses issues like crime and corruption through his role as Chairman of Seva Path Media and Managing Director of Vijay Sri Foundation.
During the COVID-19 pandemic, Vishal Singh and his team worked tirelessly to provide food and help to the needy, including starving children, elderly citizens, and pregnant women. Despite contracting the virus himself, he continued to assist others after his recovery. He even created a life-saving oxygen regulator using household items, which was praised by doctors both in India and abroad.
In his address at the meeting, Vishal Singh spoke about his mission to create a hunger-free world. He pointed out that India’s large population, along with issues like unemployment and poverty, has caused the country to fall on the Hunger Index. He urged people to contribute just one handful of grains daily to help create a hunger-free world.
He concluded by saying that through social participation, we can empower the people around us, meet their basic needs, and work together to build a stronger, more prosperous, and developed society.
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