Don't jump up and down.....<quoted text>
The myostatin gene was mutated, it is now a new myostatin gene that produces a faster and or more muscular dog. That is genetic information the other dogs don't have. Evolution is a fact. Deal with it!!
One swallow does not make a summer, neither does one fine day; similarly one day or brief time of happiness does not make a person entirely happy.
Greek critic, philosopher, physicist, & zoologist (384 BC - 322 BC)
This gene defect also occurs in humans, mice and cattle
The dystrophies are linked with muscle hypertrophy from mutation in MSTN gene
Kornegay JN, et al;The paradox of muscle hypertrophy in muscular dystrophy. Phys Med Rehabil Clin N Am.
2012 Feb;23(1):149-72, xii. doi: 10.1016/j.pmr.2011.11.014. Review. PubMed PMID: 22239881.
Also see here in regards to whippets:
"Having these mutations do however have their negative effects,‘bully whippets’ which double-muscled whippets are otherwise referred to, have double the muscle mass yet the same sized heart and lungs possibly resulting in a shorter life span, they are also prone to shoulder and thigh cramping."
Breeders prefer the heterozygous dog since they run faster but the poor homozygous one....?
Probably cast out
These gene mutations are akin to sickle cell anaemia
Advantageous to the individual
Disadvantageous to the population
Evolution it ain't