A study was conducted at the Queen’s University Belfast in Ireland, in which the researchers pursued to identify the correlation between limb favoritism and gender in cats, as well as identifying personality traits in dogs based on paw preferences.

The cat study was conducted on 20 male and female cats of mixed-breed, ranging in age from 1 to 17 years. They studied the cats approaches for reaching food, stepping down from a high place, stepping over and sleeping patterns.

The dog study was oriented on getting answers whether dogs can be tested for having a negative mindset through their limb preferences.
For this test, the researchers observed 30 dogs of a mixed-breed trying to stabilize a Kong toy with their paws. For this, each dog was individually tested in its own home environment.
One month after this test, all the dogs were taken to the Animal Behavior Centre for an additional test for which they had to choose a bowl of food over an empty one.

Read further about this interesting research and the results here: https://goo.gl/Ems31r