Nowadays, it is widely acknowledged that many products made from
like
or
can be replaced by other modern versions. Based on that trend, even though some
say we no longer need to depend on
to satisfy our lives, I would argue that we still need animal products to some extent, especially in doing research about
.
For
,
used to be the major sources of materials to produce our outfits. Hundreds of thousands of
ago, humans knew how to use the skins of big
like bears or tigers to cover their bodies to survive during winters. Even in modern times, during the twentieth century, rich
and celebrities in many western countries still held the belief of the necessity of using
that way for making our outfits. Only for the
few decades,
has been strongly opposed by many environmentalists, activists, wildlife conservationists, and
politicians and governments because of the immorality of sacrificing
just to make what
wear and the growing support for the necessity of nature conservation.
, thanks to the development of science and technology, authentic materials have been discovered and industrially made for the specific purposes of making
with many advantages like various colours, cheaper prices and especially no requiring killing
.
, we now and never will need
to satisfy our wearing demands.
In the case of
,
are still the sources of what we eat to some extent. Livestock has provided meat for humans since the agricultural revolutions thousands of
ago, and nowadays are still doing that work in most countries around the world.
have depended on meat and fish for a very long time;
it would be difficult to change
's behaviours, and the husbandry will remain significant in our modern economy. Until very recently, artificial meats have been invented with the specific benefit of not depending on raising
, and
are believed to be very promising to replace beef and fork in the coming
.
, more tests and trials need to be done to guarantee whether the general public would accept that new types of meats since they still can feel the slight difference between the animal-based version and the lab-growing one in terms of taste. In short, the dependence on
from
is still significant but there is clear evidence to say that it will not
for long.
Turning to
,
are crucial more than ever. In the
100
, more diseases have been discovered, along with more
has been created to save human lives. Even now, pharmaceutical research and experiments are being conducted worldwide to fight against cancers, cardiovascular diseases and many others. To satisfy the demands of saving patients, drugs need to be tested before being produced at industrial scales and scientists are still using
like mice to check the effectiveness of the new
in the real organisms.
, unfortunately, still the only visible way to make sure the safety of the drug and there is still no other option equally feasible.
, modern humans still need
to make
to protect themselves.
In conclusion,
we have been successful at stopping killing
for
, there is still a long way to do the same thing in the case of
, and I still do not see any scenario in which
could be developed without using
in foreseeable future.