Ryan Crouser retained his shot put world title on Saturday despite being affected by blood clots in a lower leg taking gold in style with a championship...

By Rich McKay The parents of a teenage school shooter who killed four students and wounded six other

It turns out that human ancestors and dinosaurs could have actually co-existed, according to new research. Scientists have produced a study which suggested that placental mammals were around before the asteroid that brought an end to the Cretaceous period hit Earth 66 million years ago. A new paper published in the journal Current Biology claims that fossil records of placental mammals suggests that our ancestors roamed the Earth before the extinction event, and later flourished due to the lack of competition from dinosaur species afterwards. According to the research, primates evolved shortly before the asteroid hit. Sign up to our free Indy100 weekly newsletter Lead author Emily Carlisle of Bristol’s School of Earth Sciences said: “We pulled together thousands of fossils of placental mammals and were able to see the patterns of origination and extinction of the different groups.” Carlisle added: “Based on this, we could estimate when placental mammals evolved.” “The model we used estimates origination ages based on when lineages first appear in the fossil record and the pattern of species diversity through time for the lineage,” co-author Daniele Silvestro from the University of Fribourg shared. While we don’t have a full picture of what human ancestors looked like at that time, it’s thought they “were small and squirrely”. Carlisle said: “Unfortunately we don’t know what our placental mammal ancestors would have looked like back then. “Many of the earliest fossils of placental mammals are quite small creatures such as Purgatorius – an early ancestor of primates – which was a small burrowing creature a bit like a tree shrew. So it’s likely that many of our ancestors were small and squirrely.” Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

The Tennessee Titans haven't been this bad on offense since they were the Houston Oilers

In late September, scientists at NASA and around the world eagerly awaited the arrival of the OSIRIS-REx capsule containing a sample of the asteroid Bennu. The capsule safely landed on Earth on Sunday 24 September in a Utah desert containing a sample of the asteroid Bennu – categorised as one of the two “most hazardous known asteroids”. When the capsule was first opened, it sparked audible gasps from scientists. Since its arrival, NASA has kept its cards fairly close to its chest but a new blog post from the space agency suggests that progress is going slowly for the “best reason” as there is more sample material than they had anticipated. They explained: “The abundance of material found when the science canister lid was removed earlier this week has meant that the process of disassembling the TAGSAM (Touch-and-Go Sample Acquisition Mechanism) head – which holds the bulk of material from the asteroid – is off to a methodical start.” The OSIRIS-REx’s mission took 7 years to complete, with the sample currently being analysed by NASA taken three years ago before making its way down to Earth. Imagery from the moment the sample was taken confirmed to scientists that there would be asteroid material where they found it, but the quantity of dark particles were far more than they had anticipated. “The very best ‘problem’ to have is that there is so much material, it’s taking longer than we expected to collect it,” said deputy OSIRIS-REx curation lead Christopher Snead of NASA’s Johnson Space Center. “There’s a lot of abundant material outside the TAGSAM head that’s interesting in its own right. It’s really spectacular to have all that material there.” In the coming weeks, experts will continue to work through the particles and begin the complex process of carefully disassembling the TAGSAM to reach the bulk of the Bennu sample inside. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

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