Spurs are long, talon-like bones which protrude from the insides of a chickens shanks. They are lower on the shank, near the foot.
Although rare, some hens can also grow spurs.
No. There are some breeds of roosters who do not.
Roosters have a SPUR. Hens do not grow spurs. Spurs show at about 8 months old and older.
Roosters with spurs are a throw back to the ancient breeds of chickens that had to defend themselves in the wild. The spurs are a defense mechanism that they can use to fend off predators.
Spurs are a genetic trait of the male. I am not aware of any breed without spurs.
Some Cochins don't grow spurs. I had 3 Cochin roosters that did not grow spurs.
your teeth
Defensive weapons. Roosters fight and defend by kicking, the spurs are meant just for that purpose.
no
Most likely the rooster is sick. There is also the possibility that his spurs are too long and he is tripping himself as he walks. Check the roosters spurs and trim them if needed.
Golden Lace Wyandotte roosters have spurs after they are around a year-old. When they are young, you will notice a bump on the inside of the leg. As the rooster matures, this will develop into a spur.
I'm not certain that either of those words accurately describe what roosters do. They can peck with their beaks, or slash with their spurs.
A normal hen will not have spurs. However, sometimes hens can have spurs. It's a rare thing to see, and as far as I know is not genetic.