What are some endangered sea creatures?
there is endangered dolphins porpoises and some sharks There are also many types of beautiful fish that they have yet to name. But they are trying to keep their environment clean so that the fish can live on ...
Asked in Insects
Speculate about why the levels of DDT fall more slowly in porpoises than in other animals in the ecosystem?
DDT may stay in the system of porpoises longer than with other animals because porpoises lact the necessary enzymes to break down this type of poison. The use of DDT as a pesticide has endangered many animals in the past, and is not longer being used in the United States. ...