Use this video to introduce an example of how scientists use technology to study the natural world. A Crittercam is a camera that is attached to an animal, allowing us to see from the animal's point of view. Crittercams capture both video and audio without human intervention, providing footage that helps us answer questions about the secret lives of animals. 

 

This video shows footage from the viewpoint of a great white shark. Through this type of documentation, we can learn essential information about great white sharks' prey (such as seals) and about their interactions with other species in the ocean.

  • Great white sharks usually grow about 4.6 meters (15 feet) long. Some great whites have reached 6 meters (20 feet) long, which is about the height of a two-story house.
  • At their biggest, great white sharks can weigh 2,268 kilograms (5,000 pounds), which is much more than an average car.
  • Great white sharks are known to swim at a speed of 24 kilometers (15 miles) per hour due to their powerful tails and torpedo-shaped bodies.
  • The mouths of great white sharks have up to 300 teeth. These teeth are serrated, which means there are many notches on the edges. Great whites have several rows of teeth. They help them to eat prey, such as sea lions and seals.
Crittercam
Noun

camera designed to be worn on a wild animal, providing a "critter-eye view" of the animal's environment.

great white shark
Noun

large shark native to temperate ocean waters.

Noun

large body of salt water that covers most of the Earth.

predator
Noun

animal that hunts other animals for food.

prey
Noun

animal that is hunted and eaten by other animals.

seal
Noun

marine mammal with flippers and a sleek coat.

technology
Noun

the science of using tools and complex machines to make human life easier or more profitable.