칠면조가 큰 이유:
2차대전경 칠면조는 태어난지 19주가 지나 도축시점이 되면 8kg정도였다고. 지금은 무려 21kg이라고한다. 겨우 몇십년만에 품종개량을 통해 이렇게 거대하게 만든것.
The answer is about as bad as you expect...
www.popsci.com/science/why-...
popsci.com
How did Thanksgiving turkeys get so darn big?
Generations of selective breeding have made the 'bird of courage' unable to fly or mate on its own.