SARS-CoV-2 transmission model suggests primary school infection could be greater this autumn than in 202013 September 2021The SARS-CoV-2 epidemic has already had a major impact on children's education, with schools having been required to implement infection control measures that have led to long periods of absence and classroom closures. With the new school year underway, risk modelling specialists at the University of Bristol have developed a new epidemiological model for SARS-CoV-2 transmission that forecasts primary school infection outbreaks could be more frequent and possibly substantially larger this autumn than in 2020, due to the more transmissive and infectious Delta variant and projected increase in community infection.
New study sheds light on the deep evolutionary origins of the human smile6 May 2021The origins of a pretty smile have long been sought in the fearsome jaws of living sharks which have been considered living fossils reflecting the ancestral condition for vertebrate tooth development and inference of its evolution. However, this view ignores real fossils which more accurately reflect the nature of ancient ancestors.
New study unravels Darwin’s ‘abominable mystery’ surrounding origin of flowering plants 28 January 2021The origin of flowering plants famously puzzled Charles Darwin, who described their sudden appearance in the fossil record from relatively recent geological times as an “abominable mystery”. This mystery has further deepened with an inexplicable discrepancy between the relatively recent fossil record and a much older time of origin of flowering plants estimated using genome data.
Cell death shines a light on the origins of complex life27 January 2021Organelles continue to thrive after the cells within which they exist die, a team of University of Bristol scientists have found, overturning previous assumptions that organelles decay too quickly to be fossilised.