1. Walrus
... year and the major causes of death are malnutrition, predation and diseases(Fay et al. 1979). The walruses are mainly benthic feeders and their diet is mostly made up of bivalve mollusks. Most feeding takes place at a depth between 10 - 50 meters. They can dive much deeper but there is no point since the benthic organism they feed on cannot be ... for food, but later they have been hunted for blubber, tough hide, and ivory tusks. There are also threats from human activities such as depletion of food sources, especially the bivalve mollusks that have been commercially fished for and dras...
- Word Count: 1283
- Approx Pages: 5
- Grade Level: High School