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.
These twitches, however, are not occurrences of seizures. Seizures differ from normal twitches in a way that seizures happen suddenly and the dogâs body becomes stiff, locked-up and would start trembling heavily. The dog may also lose his consciousness and pant excessively. Whereas, in a common twitch, the dog just jerk suddenly and goes back to a quiet sleep. In fact, in the duration of a twitch, when you call out your dogâs name, it would wake as if nothing happened at all. Studies show that puppies and old dogs tend to dream more than middle aged and adult dogs.