Yes, giraffes do have knees.
their knees bend outwards.
Long and knobby
Giraffes have padded and callused knees to support their long necks when bending down to drink water or graze on vegetation in the savanna.
no never eat other Giraffes.
Giraffes
No. Giraffes are herbivores.
Giraffes can get harmed
No. No quadrupeds have four knees, it is just that on some, the proportions make them look as if they do. On the front legs of giraffes, the part that looks like a knee is actually a wrist. EDIT: The original poster is wrong, Elephants have 4 knees.
Baby Giraffes
A giraffes movement is walking
Giraffes are are diurnal
Giraffes are mammals.