Question

how human affects wildlife

Answer 1

Humans are responsible for causing many changes in the environment that hurt animals and plant species. We take up more space on Earth for our homes and cities. We pollute habitats. We illegally hunt and kill animals.

Humans can also cause harm to animals, on purpose or by accident. Habitat Destruction. When humans destroy wild land to build homes, factories, shopping malls, amusement parks, garbage dumps, even to build a visitor center, store and restaurant in a park, the land is changed.

Answer 2

Humans are now responsible for causing changes in the environment that hurt animals and plant species. We take up more space on Earth for our homes and cities. We pollute habitats. We illegally hunt and kill animals. We bring exotic species into habitats. All of these activities take resources and habitats away from plants and animals.

Human activity often changes or destroys the habitats that plants and animals need to survive. Because human populations are growing so fast animals and plants are disappearing 1000 times faster than they have in the past 65 million years. Scientists estimate that in the 21st century 100 species will become extinct every day.
Animals and plants have always had a hard time surviving. Scientists estimate that over two thirds of the animals and plants that once lived on Earth are now extinct.

Animals became extinct in the past for a wide variety of reasons. In some cases competition for resources among animals led to extinction in other cases environmental changes caused extinction.

Scientists think dinosaurs became extinct because a meteorite struck the Earth and caused changes in the environment that the dinosaurs and other animals and plants couldn't adapt to.