Cocos Island, a remote volcanic summit in the middle of the Pacific …
Cocos Island, a remote volcanic summit in the middle of the Pacific Ocean, serves as a beacon for hungry predators, including thousands of hammerhead sharks that travel here each year in search of prey. This video segment from NOVA: "Island of Sharks" depicts some of the common predator-prey interactions that take place in the nutrient-rich waters surrounding the island.
Do shark feeding frenzies really exist? Will sharks turn into a bunch …
Do shark feeding frenzies really exist? Will sharks turn into a bunch of cannibals if they start competing for food? In this video, Jonathan wants to find out, and travels to Micronesia for an experiment. You wonŰŞt believe the fantastic result! Please see the accompanying study guide for educational objectives and discussion points.
Last month, biologists announced the discovery of hybrid sharks in Australian waters. …
Last month, biologists announced the discovery of hybrid sharks in Australian waters. The new sharks may not warrant a marine park attraction they look much like their closely-related parent species but do represent an unexpected twist of biology and evolution. This is the first time that scientists have found evidence of shark hybridization an event that was thought to be rare because, unlike the many fish that simply release eggs and sperm into the water, sharks mate. Clearly, though, the widely-distributed common blacktip shark and the Australian blacktip shark (which is restricted to northern and eastern Australia) have few qualms about each other: 57 apparently healthy hybrid individuals were discovered in the first investigation of these animals. What does this mean for the future evolution of blacktip sharks?
Sharks have inhabited the oceans for more than 400 million years. Join …
Sharks have inhabited the oceans for more than 400 million years. Join shark expert Jeffrey Graham as he describes the adaptations that have allowed these magnificent creatures to thrive over the millennia. Learn how shark biologists study shark physiology, life history, and behavior for insight into what allows these animals to rank among the worldŐs most efficient predators. (57 minutes)
In the Web-based game Predator Protector, students take on the role of …
In the Web-based game Predator Protector, students take on the role of an Ocean Adventures expedition volunteer member. In this role, students are charged with protecting three species of sharks from danger in order to defend the balance of nature in the ecosystem that these top predators help to maintain. Use the tips and handouts below to turn the Predator Protector game into a structured learning activity for your students.
Sharks and many other large ocean animals have sucker-equipped fish called remoras …
Sharks and many other large ocean animals have sucker-equipped fish called remoras sticking to them. What are the remoras doing? Do they harm the sharks? In this video, Jonathan goes on a mission to investigate remoras and their role in the food web. He even sticks one on himself. Please see the accompanying study guide for educational objectives and discussion points.
For more than twenty years, people have been feeding a large group …
For more than twenty years, people have been feeding a large group of friendly stingrays at a place in the Cayman Islands. In this video, Jonathan travels to Grand Cayman to meet up with the famous marine artist and researcher Dr. Guy Harvey who is studying the relationship between humans and stingrays. He even shows Jonathan how to hold a stingray safely in his arms. Please see the accompanying study guide for educational objectives and discussion points.
This gallery of online resources is from the Museum's Seminars on Science, …
This gallery of online resources is from the Museum's Seminars on Science, a series of distance-learning courses designed to help educators meet the new national science standards. Video Gallery: Man Bites Shark, part of the Sharks and Rays: Myth and Reality seminar, features three videos: Man Bites Shark I, which looks at the reasons sharks are threatened by people. Man Bites Shark II, which looks at Tampa Bay and how contamination from human development is affecting sharks. Man Bites Shark III, which looks at the role of sharks as a sentinel species, alerting us early on to problems within a habitat.
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