Horse. The Horse is a single-hooved (ungulate) mammal belonging to the taxonomic family Equidae. The horse has evolved over the past 45 to 55 million.

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Presentation transcript:

Horse

The Horse is a single-hooved (ungulate) mammal belonging to the taxonomic family Equidae. The horse has evolved over the past 45 to 55 million years from a small multi-toed creature into the large, single-toed animal of today. Horses in the subspecies caballus are domesticated, although some domesticated populations live in the wild as feral horses. These feral populations are not true wild horses, as this term is used to describe horses that have never been domesticated, such as the endangered Przewalski’s Horse, a separate subspecies, and the only remaining true wild horse. Kingdom:Animalia Phylum:Chordata Class:Mammalia Subclass:Theria Infraclass:Eutheria Order:Perissodactyla Family:Equidae Genus:Equus Species:E. ferus Subspecies:E. f. caballus Classification The horses' anatomy enables them to make use of speed to escape predators and they have a well- developed sense of balance and a strong fight or flight instinct. Related to this need to flee from predators in the wild is an unusual trait: horses are able to sleep both standing up and lying down. gestation lasts for approximately 335–340 days and usually results in one foal, twins are rare in horses. Horses are a precocial species, and foals are capable of standing and running within a short time following birth. Horses are herbivores with a digestive system adapted to a forage diet of grasses and other plant material, consumed steadily throughout the day. Therefore they have a relatively small stomach but very long intestines to facilitate a steady flow of nutrients.

Skeleton of femur of pelvic limb of horse 1. Head of femur 2. Greater trichanter 3. Neck of femur 4. Lesser trochanter 5. Body of femur 6. Trochlea 7. Lateral epicondyle

Greater trochanter 2. Intertrochanteric 3. Trochanteric fossa 4. Lateral supracondyloid tuberosity 5. Supracondyloid fossa 6. Intercondylar line 7. Lateral condyle 8. Intercondyle fossa 9. Meidal condyle 10. Medial epicondyle 11. Medial supracondyloid tuberosity 12. Groove for femoral vessels 13. Lesser trochanter 14. Fovea 14.