In this set of material, the reading states that the cane toad population now threatens small native animals, several measures have been proposed to stop the spread, and it provides three reasons of supports.

In this set of material, the reading states that the cane toad population now threatens small native animals, several measures have been proposed to stop the spread, and it provides three reasons of supports. However, the professor explains that all ways are not sucessful to stop the spread and refutes each of author's reasons. First, the reading states that the way to prevent the spread of the toad would be to build a national fence. On the contrary, the professor refutes this point by stating that national fence will not stop the spread because there are rivers and stream. the rivers can carry the young cane toad and eggs. That's enough to establish on other side on the river. Second, the article claims that the toads could be captured and destroyed by volunteers. In contrast, the professor contens that the volunteers are not training to capture the toads. they will be destroying the frog's egg native, and that's affect on an enivermont Third, the reading avers that reasrchers are developing a virus to control the cane toad population. Conversely, the lecture opposes this point by saying that the virus may be effecting the Central and South America because the reasearchers are transpoting some species for experment, and these animals are native species in South and Central America. the toads are vital part from ecosystem. Ecosystem will suffer