1. To Feed Or Not To Feed
... , triangular teeth. This species is extremely rare." (Cousteau 236). All sharks are carnivorous, but some will eat anything. The biggest sharks eat the smallest organisms. These large sharks are the whale shark and the basking shark. They feed off plankton in the seawater. The remaining 380 known species of sharks, most of which evolved over 160 million years ago, eat much ... cartilage, besides their backbone, which is also reinforced with mineral deposits. This enables the shark to turn quickly and smoothly, and allows the shark to touch its head, to its tail if necessary." (Harrigan 6...
- Word Count: 7237
- Approx Pages: 29
- Has Bibliography
- Grade Level: High School