ナショナルジオグラフィックのインスタグラム(natgeo) - 4月11日 03時36分

@Robert Clark Selective Breeding has lead to the extreme changes in the bulldog bred.

They may be man's best friend, but man has also changed the bone structure. As we have modified food to taste better, we have also bred dogs to have unique physical and mental traits.

Human obsession to create the perfect canine has shaped certain breeds into being almost unrecognizable from hundreds of years ago - and introduced painful diseases in the process.
#Darwin #selectivebreeding

[BIHAKUEN]UVシールド(UVShield)

>> 飲む日焼け止め！「UVシールド」を購入する

• Robert Clark