HartsfieldâJackson Atlanta International Airport has been the world's busiest airport every year since 2000; with all airports combined London has the world's busiest city airport system by passenger count.
Tension or Temperature. Dogs may shake as a way of relieving tension. If a dog is feeling nervous or uncomfortable in a situation, it might shake the whole body as a way of shaking out tension. This behavior also may function as a means of getting attention from other dogs or people.
Dog tremors causes the body or a part of it to shake, which if unattended, may be fatal. The causes of dog tremors are numerous, including abnormality in brain, infections, hereditary factors, feeble immune system, and digestive disorders, among others.