The U.S. Census Bureau expects the U.S.A. population to grow to reach these estimates over the next few decades: 1  2010 - 307,745,538. 2  2020 - 336,031,546. 3  2030 - 363,811,435. 4  2040 - 392,172,658. 5  2043 - 400,527,776 (the year of 400 million)
Symptoms of separation anxiety disorder include the following: Subjective feeling of anxiety; Unrealistic worries about the safety of loved ones; Reluctance to fall asleep if not near the primary attachment figure; Excessive dismay (for example, tantrums) if separation from the primary attachment figure is imminent; Nightmares with separation-related themes
Separation anxiety is one of the most common behavior problems seen in older dogs. A dog who has separation anxiety will become very anxious when he senses his owner is about to leave. When the owner does leave, the dog often becomes destructive, barks or howls, may urinate or defecate, and may salivate profusely.