Submitted by Luis Georg on Sun, 09/25/2016 - 13:51
Researchers seem to have found an answer to question that as to how our species have populated rest of the world. Three separate teams of geneticists have surveyed DNA gathered from cultures across the globe.
From the surveys, they have concluded that all modern non-Africans have their ancestry to a single population belong to Africa dating back 50,000 to 80,000 years back. Dispersals took place from Africa, but Joshua M. Akey of the University of Washington said that their ancestry belongs to a single one.
Submitted by Luis Georg on Thu, 09/22/2016 - 12:51
A journal Nature Communications-published research paper has come to know about a gene in tardigrades that help them survive extreme conditions, including boiling, freezing and radiation.
The researchers said that the revelation could help them protect human cells. The University of Tokyo-led team has come to know that tardigrades also known as water bears have a protein that protects its DNA. The protein covers the specie’s DNA like a blanket.
Submitted by Luis Georg on Tue, 09/20/2016 - 10:46
California sea otters’ population has reached a record high. A latest survey has unveiled that the population of the ocean ambassadors of Monterey Bay and Big Sur is currently the highest since 1982 when federal and state officials first started maintaining the record.
This year’s sea otters’ population stands at 3,272, which is an 11% rise since 2013. Tim Tinker, a research biologist, who leads the US Geological Survey’s otter program, said that increase in the population of sea urchins, favorite food of the otters, seem to be the reason behind rise in the otters’ population.
Submitted by Luis Georg on Sat, 09/17/2016 - 19:55
Dinosaur fossils discovered in the recent years have offered very interesting information about various species that thrived the planet in the past and Psittacosaurus fossil presents a unique camouflage patterns noticed in any dinosaur species for the first time. Scientists have carried out a detailed assessment of a well-preserved Chinese Psittacosaurus fossil. After the fossil analysis, they have come to know that the dinosaur had a defense mechanism that has been never seen before in any other dinosaur species.
Submitted by Luis Georg on Sat, 09/17/2016 - 19:51
Google’s new satellite-based surveillance system named Global Fishing Watch aims to change current scenario where illegal and unreported fishing has become quite a task to combat. Owing to limited resources, it has become difficult to catch renegade fishermen.
The new satellite-based surveillance system will keep on combing the world from the sky in order to find out those illegally using the oceans. Marine-advocacy group Oceana and West Virginia-based nonprofit SkyTruth were involved with Google in the development of Global Fishing Watch.
Submitted by Luis Georg on Fri, 09/16/2016 - 19:51
A new set of information has been revealed about a well-preserved dinosaur from China named Psittacosaurus, meaning parrot lizard. The dinosaur, which lived around 120 million years ago, most probably had a dense, dark forest as its habitat. Also, it boasted of a defense mechanism not seen in any other dinosaur earlier.
Study researchers have shared that the parrot lizard like many modern animals used a form of camouflage known as counter-shading. The dinosaur had lighter shade underbelly with darker shade on the top.
Submitted by Luis Georg on Fri, 09/16/2016 - 08:51
Lately, scientists have unveiled that big fish and other ocean creatures are more vulnerable to face extinction than small creatures. The revelation has challenged the most common notion.
It has been said so as fossils from five mass extinction events have suggested that small marine animals were at increased risk to become extinct than big ones in the pre-historic cataclysms. But what was found was large modern fish, including tuna and sharks and mammals were increasingly being list on ‘Red List’ of endangered species than smaller ones.
Submitted by Luis Georg on Thu, 09/15/2016 - 10:11
A journal Nature-published research paper has unveiled that the Hawaiian crow holds twigs in its teeth to take out insects and other prey from difficult to reach places. Study researchers have said that the Hawaiian crow is the only second member of its genus to be known to carry out such tasks.
Study’s lead researcher Christian Rutz from the University of St. Andrews said that the discovery is no less than eureka moment for them. For over a decade, researchers have been studying New Caledonian crows, the first member of the genus known as Corvus known for natural tool use.