paleontology

paleontology

paleontology

Mammoth DNA recovered for the first time with its chromosome structure

An international team of scientists, including researchers from the CRG and the CNAG (Barcelona), have managed to recover DNA remains from a female woolly mammoth that died in Siberia 52,000 years ago. The novelty is that, for the first time, the remains conserve the three-dimensional structure in the form of chromosomes, which makes it possible to investigate the genes that were active. According to one of the authors of the study, the results of which are published in the journal Cell, this type of discovery "changes the rules of the game, because knowing the shape of the chromosomes of an organism allows us to assemble the entire DNA sequence of extinct creatures and obtain information that was not possible before".

0

Reactions to the proposal of Crawford Lake in Canada as a geological reference site for the Anthropocene

The Anthropocene Working Group of the International Commission on Stratigraphy has  proposed Crawford Lake in Canada as a reference site for studying the Anthropocene as a possible geological epoch. This proposal for a Global boundary and Stratotype Section and Point (GSSP) was presented today at the International Congress of Stratigraphy in Lille, France. It is a necessary, but not sufficient step for the Anthropocene to enter the International Chronostratigraphic Table, the worldwide reference for geological units. Once approved by the AWG, this proposal has to go through three more votes in international geological bodies. 

0