人間の経済
There are
reef dying
-
e ecology-related problems - like drought, coral
that cannot necessarily be attributed to human
enterprise. On the other hand, there are other such problems for
particularly aggressive type of African bee was brought to Brazil to
which it is easy to see that we humans are guilty. In 1956, a
d with domestic bees, as part of a project to increase honey
掛け合わせる
Cro
production. In 1957, due to a careless keeper, the African bees
no
had the good fortune to escape, spread and, having
prejudices to crossbreed on their own with local bees.
The bees could not be captured again, isolated or persuaded
to return to Africa. Instead, they have spread through tropical