IN Animals ON
When it comes to evolution, no one thinks of dogs. And when we think of dogs, evolution is a word that doesn't ring a single bell.
We are way too busy petting and loving them. Have you ever wondered, that these dogs that we so dearly love were different looking back then?
We were aware of the changes human beings underwent during evolution and the extinction of dinosaurs was also a part of it. But dogs? When and how did dogs ever evolve?
We have evolved into bettering ourselves and man's best friend hasn't been spared.
After years of breeding and crossbreeding, dogs have undergone a crazy amount of changes in their looks, behavior, characteristics and to some extent, even their health.
Some of the changes were so extreme that one of the breeds needed medical assistance to reproduce.
These popular breeds have evolved over the years.
Check them out:
The English Bulldog has suffered a lot due to intensive breeding. They are mostly found to be suffering from every possible illness and also a shorter life span. Until 1835, they were used for bull baiting, but with the time, bulldogs became one of our favorite dog breeds of all time.
This stocky fighter breed was first found in the early 1800s and was seen with the combination of the old English Terrier and the Bulldog. The Bull Terriers had a thin loop body with a curved nose. With time due to excessive breeding, this dog has developed a warped skull and a thicker abdomen.
The Dachshunds was first seen in Germany around 400 years back. This dog once had a functioning leg with proper neck according to its size. But humans love to experiment! Right? And today, Dachshunds are the highly risked breed for intervertebral disc disease which can further result in paralysis.
In the year 1850, this canine dog species had a thinner abdomen and a sharper stance that everyone knows today. The German Shepherd is initially believed to resemble the herding sheep.
The first Saint Bernand look-alike to the Asiatic dogs which were once used by the Roman soldiers in their army. Presently, St. Bernard's have much thicker fur than their ancestors. They have broader skulls with a sharp angle between nose and foreheads. They are prone to entropion, ectropion, Stockard's paralysis, hemophilia, and osteosarcoma.
The Pug once also known as Dutch Mastiffs is the another dog breed which is prone to health diseases such as high blood pressure, low oxygenation, overheats, heart problems and much more because of intensive breeding. Pug is believed to come from the Chinese happa dogs that were brought over by the Portuguese during the 15th and 16th century.