If the tail is straight up and moving slowly with a curl, In the end, it means your feline is happy to see you, but if the tail fur is straight up along with a continuous purr, spitting or hissing sound, then your cat is feeling very angry, aggressive or even frightened.
Helmed by Dr Federico Rossano, director of the Comparative Cognition Lab at the University of California San Diego, and Leo Trottier, a PhD candidate, project They Can Talk is one of the latest in a decades-long series of psycholinguistic studies seeking to document non-humans expressing themselves in language-like ways.
Koko, a gorilla who became famous for her ability to communicate through sign language, has died in her sleep at the age of 46, according to The Gorilla Foundation. Koko, in 1972 with her lifelong friend, animal psychologist Francine ''Penny'' Patterson, who taught the gorilla sign language.
A new study led by scientists at the Queen Mary University of London provides the first evidence of how goats read human emotional expressions, implies that the ability of animals to perceive human facial cues is not limited to those with a long history of domestication as companions, such as dogs and horses.