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What made scientists think birds and reptiles were related?
Scientist think that birds are related to dinosaurs because as you study the fossilised bones of certain therapod dinosaurs especially dromaeosaurs you start to notice many similarities between them and modern day birds. The famous archeopteryx for example, which is historically considered the first bird, looked very much like a bird but still had claws on its wings and had a mouth full of teeth. Other dinosaurs from the same time period look even more like birds. In fact experiments done on modern day bird embryos show that if you play around with the genes of birds you can engineer dinosaur features such as teeth, long dinosaur tails etc. All the key features that people associate with birds developed when they were still dinosaurs. Dinosaurs had feathers, dinosaurs had oval shaped eggs, dinosaurs had beaks. The morphology of birds is so similar to some dinosaurs that scientist are starting to consider birds as not just related to dinosaurs but actually as avian dinosaurs.
Did dinosaurs have a cloaca or an anus?
A cloaca is a common chamber and outlet into which the intestinal, urinary, and genital tracts open. It is present in amphibians, reptiles (therefore dinosaurs), birds, elasmobranch fishes (such as sharks), and monotremes. Plancental mamals and most bony fishes have an anus.
What is archaeoptyeryx?
Archaeopteryx is a genus of bird-like dinosaur that lived during the Late Jurassic period. It is considered a transitional species between non-avian dinosaurs and modern birds due to its combination of dinosaurian and avian traits. Fossils of Archaeopteryx have provided important evidence for the evolutionary link between dinosaurs and birds.
What is difference between a swallow and a swift?
They belong to completely different families of birds !
Which came first fish or amphibians or birds or mammals?
Dinosaurs emerged first. Some dinosaurs were birds, but they didn't come until later.
What living thing has an evolutionary link between Dinosaurs?
Birds have an evolutionary link between Dinosaurs...
Did birds evolve from lizards?
No, birds didn't evolve from lizards, but they did evolve from dinosaurs, a different group of reptiles. Dinosaurs are different from lizards especially because of their hip structure. Birds descended from a group of dinosaurs known as theropods (bipedal carnivores)
Are hens dinosaurs?
Yes (WITH A BIG MAYBE ATTACHED) The difference between certain therapod dinosaurs and birds is very small. Every feature we use to describe birds (beak, feathers, wings) first evolved on dinosaurs. In fact the morphology between birds and the raptor family of therapod dinosaurs is so similar many scientists to call birds avian dinosaurs.
Are dinosaur birds mammals?
Birds are now classed as dinosaurs, but most dinosaurs were not birds. Neither dinosaurs nor birds are mammals.
Which animal was alive first birds or dinosaurs?
Dinosaurs evolved first and then some dinosaurs evolved into birds. So all birds are technically dinosaurs.
Were dinosaurs or birds the first beings?
Dinosaurs came before birds, because dinosaurs later on evolved into birds, therefore, making birds come along LATER then the dinosaurs. However dinosaurs were far from the first creatures on earth.
What are dinosours related to?
Pterosaurs were closely related to the dinosaurs. Because birds have descended from dinosaurs, the closest living relatives of pterosaurs are birds. All birds are equally related to pterosaurs.
What was around longer birds or dinosaurs?
Both. If you think about it, birds evolved from dinosaurs, and some think birds are the only living dinosaurs left.
Is there a connection between birds and dinosaurs?
It is generally believed that birds evolved from small, feathered, meat eating dinosaur during the Jurassic period. This is because of the similarities between those dinosaurs and early birds, which include feathers, 'hollow' bones (really they have an internal honeycomb structure), beaks, and other similar features. Additionally, animals that appear to be evolutionary links between birds and dinosaurs exist, such as Archaeopteryx.
Were normal birds alive during the Dinosaur times?
birds are dinosaurs some birds that lived with dinosaurs were archeopteryx, confuisosornis, and avivisaurus these creatures are dinosaurs all birds were dinosaurs
Are cassowary birds related to dinosaurs?
Yes. All birds are direct descendants of dinosaurs and are considered by many to be dinosaurs.
What is the presumed evolutionary link between theropod dinosaurs and birds based on?
Otherwise known as dino birds, these dinos were the first "birds" to exist.
