Reconstruction of Triceratops (Triceratops horridus), Late Cretaceous Period © De Agostini Picture Library/Getty Images
1972 – First artificial gene synthesised
Har Gobind Khorana announces his team have created the first fully artificial gene in a living cell.
The gene was a yeast tRNA (transfer ribonucleic acid) coding for the amino acid tyrosine. tRNA genes are the smallest genes, typically around 80 nucleotides long. Nucleotides are the building blocks of nucleic acids, which Khorana and his colleagues joined together to create the gene.
2013 – Excavation of most complete triceratops skeleton ever found
Naturalis Biodiversity Center/YouTube
Palaeontologists uncover three triceratops fossils in Wyoming, including the most complete skeleton ever found.
It is thought that the dinosaurs were a family unit, the occurrence of which had never before been documented. Some of the bones appeared to have been bitten through, and with Tyrannosaurus rex bones also found in the area, the family could have been victims of the predator. As herbivores, triceratops were quite often preyed upon by carnivorous dinosaurs, meaning complete skeletons are very rare.
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