Submitted by Luis Georg on Fri, 08/12/2016 - 08:07
Researchers have discovered juvenile shark teeth in the fossilized poor of the Orthacanthus sharks that were found in a coal field in Canada. The findings show that this ancient species of shark that lived around 300 million years ago used to indulge in filial cannibalism, a behavior in which adults of the species eat their own young.
Archaeologists have found evidence that humans used tools to kill and butcher animals 250,000 years ago. The samples were found in an ancient watering hole called the Azraq Oasis. It is the first time that the researchers have come across direct evidence of the act being carried out by Stone Age ancestors.
Archaeologist April Nowell from University of Victoria said that 250,000 years ago the Azraq Oasis wads a watering hole that used to attract a number of species, including human hunters who used to trap animals.
Submitted by Luis Georg on Fri, 08/05/2016 - 13:51
Researchers have provided details of the first known dinosaur that suffered from septic arthritis, a crippling form of arthritis. Researchers have discovered the dinosaur’s two forearm bones, radius and ulna.
Though researchers are not completely sure about the species, they probably think that it would be a duck-billed dinosaur also known as hadrosaur, which lived around 70 million years back. This form of arthritis also takes place in humans, birds and crocodiles.
Submitted by Luis Georg on Wed, 08/03/2016 - 10:15
Not all woolly mammoths died over 10,000 years back. There was a group on the remote Saint Paul Island in Alaska that thrived for thousands of years after their population faced extinction in other regions. These mammoths have become extinct around 5,600 years back because of shortage of water.
Submitted by Luis Georg on Tue, 08/02/2016 - 07:09
A group of woolly mammoths living on the St Paul Island, one of the last known groups of woolly mammoths, died around 5,600 years back owing to lack of drinking water. Warming climate resulted into lakes to become shallower owing to which the animals were unable to satisfy their hunger.
Majority of the world's woolly mammoths died around 10,500 years back. According to scientists, human hunting and environmental changes played a role in their extinction. But there was group living on St Paul Island, located in the Bering Sea, which managed to live another 5,000 years.
Submitted by Karan Gosal on Mon, 08/01/2016 - 07:24
Resemblance with the 'Game of Thrones' dragons, researchers have named two new ant species after them. They are now named as Pheidole drogon and Pheidole viserion. Both the ants could challenge any scientist’s assumption about spiny ants.
These ants have spikes that poke out from their backs. Scientists have said that what is present in these spines might change scientists’ perception for what actually they are meant for. Study’s lead researcher Eli Sarnat said that the spikes give a perception that they are meant for protection against predation.
Submitted by Diana Bretting on Fri, 07/29/2016 - 07:46
Discovery of a foot bone dated to around 1.7 million years ago from the site of Swartkrans having definite evidence of malignant cancer has ensured that the disease dates back in deep prehistory rather than from recent times.
For now, the researchers are not sure to which the foot bone belongs to, but one thing is clear that it is of a hominin. The foot bone was originally excavated between 1960 and 1980 from the Swartkrans cave, a part of a World Heritage Site in South Africa.
Submitted by Luis Georg on Thu, 07/21/2016 - 07:46
Researchers have unearthed fossils of a carnivorous dinosaur known as Murusraptor barrosaensis that lived around 80 million years ago during the Cretaceous Period. The dinosaur discovered in Sierra Barrosa, in northwest Patagonia that was around 21 feet long was a violent predator that loved to kill its preys with sickle-shaped claws.
Submitted by Luis Georg on Wed, 07/20/2016 - 10:40
Archaeologists have discovered evidence as to how the first generations of Europeans in the Americas have mingled with indigenous population. Researchers from the British Museum and the University of Leicester have come to know through inscriptions found in the caves of a remote Caribbean island.
The research paper published in Antiquity is based on the finding of a large collection of early colonial inscriptions and commentaries being written by named individuals within a cave system provide an insight into dialogue between Europeans and Native Americans.
Submitted by Luis Georg on Tue, 07/19/2016 - 12:23
If you think turtles have been using their shells as shields since they have evolved then you are highly mistaken. A new study has unveiled that shells were evolved for a complete different reason. The researchers believe that the shell-like characteristics first evolved in turtle ancestors to burrow underground.
Study’s lead researcher Tyler Lyson, a paleontologist from the Denver Museum of Nature & Science said that in the same way as bird feathers did not initially evolve for flight, the starting of turtle shell was not meant for protection.