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Friesian horse: Difference between revisions
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* '''Kingdom:''' [[Animalia]] | * '''Kingdom:''' [[Animalia]] | ||
* '''Phylum:''' [[ ]] | * '''Phylum:''' [[Chordata]] | ||
* '''Class:''' [[ ]] | * '''Subphylum:''' [[Vertebrata]] | ||
* '''Order:''' [[ ]] | * '''Class:''' [[Mammalia]] | ||
* '''Family:''' [[ ]] | * '''Order:''' [[Perissodactyla]] | ||
* '''Genus:''' [[ ]] | * '''Family:''' [[Equidae]] | ||
* '''Species:''' [[ ]] | * '''Genus:''' [[Equus]] | ||
* '''Species:''' [[E. caballus ]] | |||
|- | |- | ||
! {{animal header}} | ''' | ! {{animal header}} | '''Equus caballus''' | ||
|- style="text-align:center;" | |- style="text-align:center;" | ||
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== Reproduction == | == Reproduction == | ||
All horses breed the asexually. Birth of the baby, or foal, occurs live; making the horse a viviparous animal. They are seasonal breeders, meaning there is only a specific season in which a horse will mate. Most mares give birth in the spring to a single baby (foal), sometimes twins. The mare carries her foal for 11 months, and produces milk for their young and will feed them for several months. When the foal is born it only takes1 – 2 hours for it to be able to stand up and walk. | |||
*'''Fertilization''' | |||
When trying to attract a mate, the female horse (mare) urinates by raising her tail and revealing her vulva. When a male horse (stallion) notices her he approaches with a high head and tail and his ears drooped backwards. He will nicker, nip, nudge her, and then sniff her urine to determine her sexual maturity (973 days; average). | |||
This behavior stimulates the mare's secretion and the stallion's erection. If both the mare and stallion are satisfied with each other, he will mount her and copulation will occur. Often they will periodically repeat courtship and breeding. | |||
*'''Mare and Foal''' | |||
Giving birth normally takes place at night or in the early morning, and is usually over in 15 minutes. Once the foal is out, the mare will chew on the membranes/placenta to prevent the foal from suffocating and then lick the foal to help blood circulation. In fifteen minutes, the foal will attempt to stand and get milk from its mother. When foals are born their legs are almost the same length as they are when they are fully grown; their legs are so long they find it difficult to reach down to the grass to eat. Foals can focus with their eyes almost as soon as they are born. | |||
The foal is born without teeth, but they cut their first teeth within a week. As it gets older, the horse grows teeth. By the time the foal is six to nine months the young horse has all of its milk teeth. At five to six years of age, the horse replaces its milk teeth with permanent teeth. Horses are fully grown by 3 - 4 years of age. | |||
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{{Biology portal}} | {{Biology portal}} | ||
== References == | == References == | ||
* [http:// | * [http://animaldiversity.ummz.umich.edu/site/index.html Animal Diversity Web] Anna Bess Sorin, University of Michigan. | ||
* [http://www. | * [http://http://www.nationmaster.com NationMaster Encyclopidia] author, publisher, date. | ||
* [http://www.example.com reference title] author, publisher, date. | * [http://www.example.com reference title] author, publisher, date. | ||
