the elimination of trees in forest. Causes for

deforestation are because of creating more land

for housing, urbanization,timber,cash crops, or even

firewood. So how does this connect with evolution?

Evolution, as we know can affect any living specie, so

with that in mind, when deforestation occurs some

birds, such as a toucan which are large beaked birds

and eat large seeded fruit, become alert of the

decreasing amount of trees which are their food supply

so they migrate to other environments for safety and

food. The trees however, have became dependent on the

toucans to spread their large seeds and help them reproduce

but now that the toucans have fled the trees must evolve and

change their seeds from large to smaller in order for smaller

birds to be able to eat the fruit and help disperse the seeds

so the trees wont become endangered or even extinct. 

http://science.time.com/2013/05/31/how-human-activity-

and-extinctions-are-driving-evolution/

lead to major damage on the world and the society and other species. By the societies 

ignorance of not taking care of this world we live in, by littering; they cause pollution 

in air. Also when people smoke, and use chemicals (ex. hairsprays, paint sprays etc. 

any product that is sprayable and contains chemicals); cause the pollution of the air ,

that we breathe and need to survive. The pollution of water affects the fishes by killing 

them, which is the reason why they end up on the shore. The pollution of air is causing 

the atmosphere to open, by this happening the heat is increasing; and causing a 

larger amount of people in this world to get skin cancer. Also when smoking near 

child or pregnant woman, may cause birth defects; and for the children may cause 

defects, and breathing problems.

Some human activities can be harmful to different species. But overtime, evolution can take its toll and these species can become resistant to such activities. For example, water pollution has become one of the biggest human activities negatively affecting aquatic species. While the dumping of trash and oil spills harm and kill aquatic animals, there are some advantageous evolutionary changes, specifically with fish. Special chemicals get dumped in lakes, oceans, and ponds. These chemicals can harm a fish's immune system forming tumors and such. But thanks to evolution, studies show fish and other aquatic animals have become more resistant to these chemicals.

It is proven that, the small amount of time humans have lived in this planet, it have had a dramatic change to the earth such as carbon dioxide levels rising, forest declining, animals becoming extinct, ocean pollution and much more.Bees for example have been declining all over the world, the issue perhaps can be the toxic chemicals released by humans to protects their crops. Large quantity of birds and mammals such as panda bears have been decline to a minimum amount of that specific species due to the fact of deforestation.

The cars humans invented has severally damage the ozone layer, causing the uv rays affect our skin directly, therefore more people have skin cancer and other skin related diseases.

In addition the construction of houses have killed rain forest ecosystems and jungles and taking with those ecosystems a lot of animals, which are now known as animals in risk of extinction.

Humans have created a beautiful place to live, but that beautiful place has a dark side that not everybody can see.