You need to take your dog to a veterinarian. Forums like this are likely to not give an answer to your question for sometimes weeks and that could be too late. because you need a vet.
A deceased horse will usually be found lying on its side, head down, legs outstretched.
Casillas blocked the ball with his outstretched legs.
Pigeons cant fly without legs as they cant land propperly or balence straight so no!
straight
BE MORE FLEXIBLE!DO CART WHEELS!!! EXERCISE!! Once your flexible. Do windmills with your legs straight
Your knees don't bend backward because of where the joint stops. This is necessary to keep the legs sturdy, and the person standing up straight, and not falling.
a table
It depends on the dino. Alligators are descendants of dinos, and their legs sprawl. But the majority of dinos that are extinct had straight vertical legs.
A chair.
When you say crooked do you mean bowed? or some other form of not straight. Boxers should have fairly straight front legs and slightly bowed upper rear legs.
it means your straight
a table or a chair