![]() We can confidently think of Velociraptor as having a bird-like feather covering, even though its fossils only preserve the bones. Were the Velociraptors in Jurassic Park covered in feathers? But those that could, flew in a range of different ways – suggesting early evolutionary experiments of flight, with birds being the most successful of those experiments, and persisting to the present. Not all of the dinosaurian close relatives of birds could fly. Its fossil has preserved soft tissue with a bat-like wing membrane. Also, Yi qi was discovered in the last couple of years. ![]() Fossils like this suggest the intriguing possibility that birds evolved from a gliding ancestor that had effectively four wings. ![]() It’s the Late Jurassic where we start finding really interesting, distinctive, bird-like dinosaurs – especially with recent fossils from China preserved in fine-grain sediments from lake beds.Īnchiornis is a Late Jurassic winged dinosaur, with large feather arrays on its legs. Others closely related to birds, like Velociraptor, can be from the Late Cretaceous (100-66 million years ago), so they’d also had a lot of time to evolve independently. Archaeopteryx, discovered in 1861, was for a long time the only truly bird-like dinosaur – it’s from the Late Jurassic era (150 million years ago). Theropods are all bipedal and some of them share more bird-like features than others. If feathers evolved in dinosaurs, what is the origin of birds?īirds belong to the theropod group of dinosaurs that included T. It was found preserved in volcanic ash falls – a bit like Pompeii – captured curled up in a sleeping position very similar to how a lot of birds roost today. Rare fossils also give us glimpses of the behaviour of bird-like dinosaurs, such as Mei long, a small, duck-sized bipedal dinosaur from the Cretaceous era. Many dinosaurs had not just some kind of body covering, but distinctive bird-like feathers. The strong evidence doesn’t just come from fossilised bones and similarities found across the skeleton, but from fossilised soft tissue – especially feathers. There’s no longer really any doubt that birds are a type of dinosaur. He explains why ‘dinosaur’ is more ‘incredible bird’ than ‘terrible lizard’…Īre birds really dinosaurs? Is it disputed? Professor of Palaeobiology at the University of Oxford, Roger researches the evolution of dinosaurs – including bird origins – and large-scale evolutionary patterns. Such are the revelations from fossil discoveries in recent decades that are changing how we see birds today. Combined with short, muscular arms ending in a single giant claw for digging, Shuvuuia deserti (meaning ‘desert bird’) is not what you might classically expect from a dinosaur. To learn more, see the privacy policy.Roger Benson’s latest paper features a feathered, chicken-sized, bird-like dinosaur revealed to have the hearing ability to rival a barn owl – a specialised nocturnal predator. Please note that Urban Thesaurus uses third party scripts (such as Google Analytics and advertisements) which use cookies. Special thanks to the contributors of the open-source code that was used in this project: and you might like to check out the growing collection of curated slang words for different topics over at Slangpedia. There is still lots of work to be done to get this slang thesaurus to give consistently good results, but I think it's at the stage where it could be useful to people, which is why I released it. Please also note that due to the nature of the internet (and especially UD), there will often be many terrible and offensive terms in the results. Or you might try boyfriend or girlfriend to get words that can mean either one of these (e.g. ![]() ![]() The search algorithm handles phrases and strings of words quite well, so for example if you want words that are related to lol and rofl you can type in lol rofl and it should give you a pile of related slang terms. The higher the terms are in the list, the more likely that they're relevant to the word or phrase that you searched for. Note that this thesaurus is not in any way affiliated with Urban Dictionary.ĭue to the way the algorithm works, the thesaurus gives you mostly related slang words, rather than exact synonyms. The official Urban Dictionary API is used to show the hover-definitions. These indexes are then used to find usage correlations between slang terms. The Urban Thesaurus was created by indexing millions of different slang terms which are defined on sites like Urban Dictionary. ![]()
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