Fossil find: blood of a dinosaur

Archaeologists from the Imperial College London were studying bone fossilisation. They cut out tiny fossil fragments in bones and studied them. By chance, they found blood-like cells and collagen from a 75-million-year-old dinosaur fossil that lived about 10 million years before Tyrannosaurus rex, the king of the dinosaurs (New Scientist, June 9, 2015).

The blood-like cells may not contain DNA, but the researchers think the other extracted cells, such as soft tissue (flesh) cells, from other dinosaur fossils may contain DNA. Even without DNA, blood cells and molecules may still reveal information from the bone sample. Previously, soft flesh cells were only found in fossils in rare cases, such as when fossils were found frozen in ice or in a dry environment that had not broken down the flesh on the animal's bones.

The blood cells that they found came from a claw of a dinosaur at the Dinosaur Park Formation in Canada. Three-dimensional examinations of the blood-like cells under an electron microscope showed that the cells have nuclei (human red blood cells do not have nuclei). Researchers used mass spectrometry, which showed that the dinosaur blood sample looked very similar to the blood of a living bird - the Australian emu.

Susannah Maidment and Sergio Bertazzo of the Imperial College London published their findings in the Nature Communications journal, and are hoping to investigate more samples of dinosaur fossils to understand the preservation of cells, and how far back in time it happens.

Comments

Pir-E-Kamil - The Perfect Mentor by Umera Ahmed: book review

The Perfect Mentor pbuh (2011) is set in Lahore and Islamabad in Pakistan. The novel commences with Imama Mubeen in medical university. She wants to be an eye specialist. Her parents have arranged for her to marry her first cousin Asjad. Salar Sikander, her neighbour, is 18 years old with an IQ of 150+ and a photographic memory. He has long hair tied in a ponytail. He imbibes alcohol, treats women disrespectfully and is generally a “weird chap” and a rude, belligerent teenager. In the past three years he has tried to commit suicide three times. He tries again. Imama and her brother, Waseem, answer the servant’s call to help Salar. They stop the bleeding from his wrist and save his life. Imama and Asjad have been engaged for three years, because she wants to finish her studies first. Imama is really delaying her marriage to Asjad because she loves Jalal Ansar. She proposes to him and he says yes. But he knows his parents won’t agree, nor will Imama’s parents. That

Flaws in the Glass, a self-portrait by Patrick White: book review

The manuscript, Flaws in the Glass (1981), is Patrick Victor Martindale White’s autobiography. White, born in 1912 in England, migrated to Sydney, Australia, when he was six months old. For three years, at the age of 20, he studied French and German literature at King’s College at the University of Cambridge in England. Throughout his life, he published 12 novels. In 1957 he won the inaugural Miles Franklin Literary Award for Voss, published in 1956. In 1961, Riders in the Chariot became a best-seller, winning the Miles Franklin Literary Award. In 1973, he was the first Australian author to be awarded the Nobel Prize for Literature for The Eye of the Storm, despite many critics describing his works as ‘un-Australian’ and himself as ‘Australia’s most unreadable novelist.’ In 1979, The Twyborn Affair was short-listed for the Booker Prize, but he withdrew it from the competition to give younger writers the opportunity to win the award. His autobiography, Flaws in the Glass

The Beggars' Strike by Aminata Sow Fall: book review

The Beggar’sStrike (1979 in French and 1981 in English) is set in an unstated country in West Africa in a city known only as The Capital. Undoubtedly, Senegalese author Sow Fall writes of her own experiences. It was also encapsulated in the 2000 film, Battu , directed by Cheick Oumar Sissoko from Mali. Mour Ndiaye is the Director of the Department of Public Health and Hygiene, with the opportunity of a distinguished and coveted promotion to Vice-President of the Republic. Tourism has declined and the government blames the local beggars in The Capital. Ndiaye must rid the streets of beggars, according to a decree from the Minister. Ndiaye instructs his department to carry out weekly raids. One of the raids leads to the death of lame beggar, Madiabel, who ran into an oncoming vehicle as he tried to escape, leaving two wives and eight children. Soon after, another raid resulted in the death of the old well-loved, comic beggar Papa Gorgui Diop. Enough is enou

FEAST OR FAMINE

Search This Blog