Final answer:
Aldo Leopold made contributions to wildlife management through his concept of the land ethic. J.N. Darling advocated for the protection of wildlife and natural resources through his conservation efforts and political cartoons. He believed that humans should view themselves as members of the land community.
Step-by-step explanation:
Aldo Leopold made significant contributions to wildlife management through his concept of the land ethic, which emphasized the interconnectedness of all components of the natural world. He believed that humans should view themselves as members of the land community and advocated for the protection and conservation of all species and ecosystems. Leopold's book, 'A Sand County Almanac,' introduced these ideas and influenced the environmentalist movement.
On the other hand, J.N. Darling, also known as Jay Norwood Darling, was a conservationist and cartoonist. He worked towards the protection of wildlife and natural resources, specifically through advocating for the creation of national wildlife refuges and the preservation of wetlands. He believed that humans should view themselves as members of the land community and advocated for the protection and conservation of all species and ecosystems. Darling's political cartoons often depicted the need for conservation and played a significant role in raising public awareness about wildlife management and environmental issues during his time.