Humans have a shorter attention span than goldfish?A study of 2,000 people found that the average human attention span has fallen from 12 seconds to 8 seconds, which is less than that of a goldfish (nine seconds).
I have always said that dogs have epic ADD, and for a simple reason: they are bombarded by scents we cannot discern, have pent up prey drive we cannot fully understand, and get all kinds of cues from other dogs and animals that we are completely unaware of.
Combine that with a much simpler mind wired for immediate binary choices, and we have an animal whose attention is constantly shifting, always looking for some higher form of stimulation.
And yet that description comes pretty close to describing the modern human.
The modern human is constantly looking for more stimulation, our concentration drifting from TV screen, to computer screen, to telephone screen, to... Woah! Was that a squirrel?