Yes, there is strong phylogenetic evidence suggesting that all dromaeosaurids possessed them. This evidence comes from phylogenetic bracketing, which allows paleontologists to infer traits that exist in a clade based on the existence of that trait in a more basal form.
In other words, evidence of raptors having feathers has been found in the bones themselves as well as fossil prints.
It is very likely that all dromeosaurs (the clade to which Deinonychus belonged) had feathers, although for Deinonychus specifically none have ever been found. It is known for a fact that very closely related dinosaurs were feathered and therefore Deinonychus probably was too.
No, cows do not have feathers. Cows are mammals and are covered in hair or fur, not feathers. Feathers are typically found on birds.
Countour feathers and down feathers
no they have spikes and they have to nail. But no feathers. they are no such things as feathers
contour feathers,flight feathers,primary feathers and secondary feathers
No, they are feathers. Feathers are totally different from hair.
contour feathers
The down feathers (or the soft feathers underneath the outside feathers).
contour and the feathers to keep them warm are down.
Down feathers keep them warm Counter feathers help them fly
Another term for turkey feathers is "plumage." Plumage refers to the feathers collectively, which can include various types of feathers such as contour feathers, flight feathers, and down. These feathers serve different purposes, including insulation and aiding in flight.
You have to be a bird to grow feathers. humans don't grow feathers.