gathered which is preserved even through the siege on linen grad during world war two much like alexander naismith yarn of he had his eye on the future he understood the need for preserving certain plant species and sought to find a way to sustain agricultural production since at present the war for you just by using what has been achieved. is enough to increase production. and pleased in the large store sector one hundred times that is just of gaining reads through ordinary selection there. however some russian scientists are taking mother nature one step further their cross-breeding domestic life stuck with their wild cousins generating species like this cow yak hybrid. and here at the institute of animal husbandry just outside of moscow there's a whole range of hybrid animals that they're experimenting with these new species are designed to offer certain advantages over their purely domestic cousins by varying the gene pool they're immune to common herd diseases that means more survive to maturity and potentially more meat on our tables in addition to this is vance form of selection they're als