Cats that are scratching as a result of stress may also be showing other behavioral signs of anxiety. (purrfectpost.com)
The puppies with this disease often show behavioral signs associated with decreased vision as early as 12 weeks of age and may become completely blind by 1 to 2 years of age. (chowhealth.org)
For all three, gestures were usually accompanied by one or more behavioral signs of an intention to communicate. (sciencedaily.com)