Owning a dog is great fun and immensely rewarding. But, dogs have complex needs and each dog is unique. There is no one ‘perfect’ way to care for all dogs, but expert advice will help you ensure your dog is healthy and happy. Understanding dog needs is very important for keeping your dog healthy and safe and ensure they live up to expectation. There are approximately eight and half million dogs kept as pet in the UK. But, did you know that 8 out of 10 dogs suffer from separation anxiety when left alone? if not, you’re not alone as it’s estimated that half of owners don’t realize. Looking at the world from a dogs point of view can help you understand your pet better. Dogs have highly developed senses: dogs have an incredible well-developed sense of smell, far superior to humans, at certain frequencies, dogs can detect sounds to four times quieter than humans can hear, dogs can also hear ultrasound, which is sound with greater than the upper limit of human being, dogs can see better than humans in dark and dim light. Dogs are extremely diverse in both size and shape. For example, there is over a 110- fold difference weight between the chihuahua ( 1 kg) and the St Bernard (115 kg ).Dogs use a range of method to communicate: communication is very important in helping dos form and maintain social groups, to transmit scent information, dog use urine, faeces and secretions from special scent glands, dogs produce a range of sounds, often in complex combinations, including whines, whimpers, growls, barks and howls. many dogs can use their body, face, tail, ears and limbs to communicate with other dogs.