Resource: Shark and Turtle
Media Type:
QuickTime Video
Length: 2m 41s
Size: 7.3 MB
The undiscerning palate, wide jaws and powerful teeth of a tiger shark make it a constant threat to sea turtles. However, the large head and strong, muscular jaws of the loggerhead sea turtle help it fend off fierce predators. In this video segment from Nature, a loggerhead sea turtle refuses to fall prey to the tiger shark and attacks its voracious enemy.
Alternate Media Available:
Transcript (Rich Text Format Document)
Loading reviews...Teachers' Domain, Shark and Turtle, published November 18, 2008, retrieved on ,
http://www.teachersdomain.org/resource/nat08.living.eco.ecos.turtle/
- Background Essay
- Questions for Discussion
- Standards
Print Background EssaySharks and their biological cousins, the rays, are among the highest-profile denizens of the deep. But sharks are not the solitary killing machines that popular movies and the press might have us believe. In their marine environment, sharks coexist with numerous other species - many of whom flock to be near the sharks, rather than running from them in fear. In many of these cases, the interaction between two different species mutually benefits each species. But humans, too, have become an increasingly important player in the lives of sharks - and as they are increasingly hunted for their fins, sharks are actually becoming more endangered than they are dangerous. The impact on the marine ecosystem that would result from the disappearance of sharks would be devastating, but there is still time to save these magnificent creatures, and the ecosystems that depend on their existence.
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Related Resources:
Collapse of Sharks
(QuickTime Video)
Sharks and Fishermen
(QuickTime Video)
Sharks in Our Future
(QuickTime Video)
Unlikely Travel Companions
(QuickTime Video)
See Also:
K-12 Subject:
Ecosystems
Lesson Plans Using this Resource:
Source: Nature: "The Secret World of Sharks and Rays"
Resource Produced by:
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Major corporate support for the Nature collection was provided by Canon U.S.A. and SC Johnson. Additional support was provided by the Corporation for Public Broadcasting and the nation’s public television stations.