1. DOG "man's best friend"

2. Dog The dog (Canis lupus familiaris) – is a domesticated subspecies of the gray wolf, – a mammal of the Canidae family of the order Carnivora. The term can also be used more generally to encompass any member of the biological family Canidae. Subspecies – druh Mammal - savec

3. Dog The domestic dog has been one of the most widely kept working and companion animals in human history. There are estimated to be 400 million dogs in the world. Companionate – družný, věrný, doprovázející

4. Dog The dog has developed into hundreds of varied breeds. Height measured from a few inches in the Chihuahua to a few feet in the Irish Wolfhound. Breed – rasa, plemeno Wolfhound - vlčák

5. Dog Color varies from white through grays (usually called blue) to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; Coats can be very short to many centimeters long (straight or curly). Pattern – typ, vzor, model Coat – srst, peří, nátěr, kabát

6. Biology Domestic dogs come in many shapes and sizes because they have been selectively bred for millenia for various behaviors, sensory capabilities, and physical attributes. Their morphology, although highly modified, is based on that of their wild ancestors, gray wolves.

7. Biology Modern dog breeds show more variation in size, appearance, and behavior than any other domestic animal. Within the range of extremes, dogs generally share attributes with their wild ancestors, the wolves.

8. Biology Dogs are predators and scavengers, possessing sharp teeth and strong jaws for attacking, holding, and tearing their food. Scavenger – mrchožrout, Possess – mít, vlastnit, Jaw – čelist.

9. Biology Like many other predatory mammals, the dog has powerful muscles, a cardiovascular system that supports both sprinting and endurance, and teeth for catching and tearing. Dogs are more variable in size than any other domesticated animal. Endurance – výdrž, vytrvalost

10. Biology The smallest known dog was a Yorkshire Terrier, Who stood only 6.3 cm at the shoulder, 9.5 cm in length along the head-and-body, and weighed only 113 grams. Shoulder - hřbet

11. Biology The largest known dog was an English Mastiff which weighed 155.6 kg and was 250 cm from the snout to the tail. Snout – čenich Tail – ocas, ohon

12. Parasites Common external parasites are various species of fleas, ticks, and mites. Internal parasites include hookworms, tapeworms, roundworms, and heartworms. Tick – klíště Mite – roztoč Hookworm – měchovec Tapeworm – tasemnice Roundworm – škrkavka Heartworm – vlasovec psí

13. Mortality The typical lifespan of dogs varies widely among breeds. The median life of most dog breeds is between 10 and 13 years. Lifespan – střední délka života Median – střední

14. Diet A dog's diet should consist of balanced proportions of proteins, carbohydrates, fats, and water. The average size dog requires about 30 calories per pound of body weight per day. Diet – potrava, strava, dieta Carbohydrate – sacharid

15. Dangerous substances Human food. Some foods commonly enjoyed by humans are dangerous to dogs, including chocolate, onions, grapes and raisins, some types of gum, certain sweeteners, and Macadamia nuts. Raisin – rozinka

16. Reproduction In domestic dogs, sexual maturity begins to happen around age 6 to 12 months for both males and females, although this can be delayed until up to two years old for some large breeds. Adolescence for most domestic dogs is around 12 to 15 months, beyond which they are for the most part more adult than puppy.

17. Dog communication There are a number of basic ways a dog can communicate. These are movements of the ears, eyes and eyebrows, mouth, head, tail, and entire body, as well as barks, growls, whines, whimpers, and howls. Growl – vrčet Whine – vrnět Whimper - kňučet

18. Work and sport Dogs have traditionally been used for a variety of tasks since their domestication by early man. Dogs have been bred for herding livestock, different kinds of hunting, keeping living spaces clear of rats, guarding and pulling loads in addition to their roles as companions. Herding - hnát (4. p., stádo)

19. Breeds There are numerous dog breeds, with over 800 being recognized by various kennel clubs worldwide. Many dogs, especially outside the United States of America and Western Europe, belong to no recognized breed. Kennel club – kynologická (šlechtitelská) stanice Kennel – psí bouda

20. The End – Keep Smiling