Because when they're considered different breeds, they can't be bred together, which means each «breed» has its own small
gene pool instead of one large one.
Not exact matches
Instead, we run around du mbing the
gene pool down, breeding with the neanderthals.
Instead a tremendously rare dog with a very limited
gene pool is now the toast of the town — a dog that will not be found in any rescue centre and a dog which, despite claims to the contrary is NOT hypo - allergenic.
Marr said he found support for his approach online — a beekeeper in Nebraska who recommends building a strong and diverse
gene pool with wild bees
instead of commercially bred mail - order shipments; minimizing pesticide exposure by locating the hives far away from cultivated farm fields; avoiding antibiotic and other chemical treatments to fight bee parasites and diseases,
instead relying on beneficial fungi, bacteria and other components of a healthy hive system; and then raising queens and new bees from those bees that survive the first year.