Robotic Jellyfish to Monitor Coral Reefs

Category: Technology/Innovations

Listening

Unlocking Word Meanings

Read the following words/expressions found in today’s article.

  1. resemble / rɪˈzɛmbəl / (v) – to have similar qualities with someone or something
    Example:

    One of the robots in the expo resembled a dog.


  2. employ / ɪmˈploɪ / (v) – to make use of something
    Example:

    Scientists employed robots to gather data from Mars.


  3. model after / ˈmɑːdl̟ ˈæftɚ / (phrasal) – to make or form something similar to another being or thing
    Example:

    The toys in the exhibit were modeled after dinosaurs to appeal to children.


  4. mistake (something) for (something) / məˈsteɪk fɚ / (phrasal) – to wrongly think that a thing is something else
    Example:

    The child mistook the doll for a real girl.


  5. drive (something) away / draɪv əˈweɪ / (phrasal) – to make someone or something leave a place
    Example:

    This device releases chemicals that drive insects away.


Article

Read the text below.

Robots resembling jellyfish were recently created for marine research.


Engineers from Florida Atlantic University and the US Office of Naval Research made five jellyfish drones. Experts aim to use these mechanical jellyfish to explore and monitor underwater ecosystems, especially delicate organisms like coral reefs.


The devices record data as well as measure the ocean’s temperature and the amount of salt in the water. Scientists can then recover the robots from the ocean and download the information from these devices. Inventors are confident that these robots will be great tools for tracking how corals respond to climate change.


In terms of design, these jellyfish drones are very different from the small submarines that scientists commonly employ for underwater studies. The mini-submarines usually have blades that can damage coral reefs. On the other hand, the jellyfish robots are made of silicon rubber, which enables the machines to swim into tight spaces without harming the corals.


In the past, many engineers were inspired to use jellyfish as models for various inventions because of the marine animal’s outstanding ability to swim. For instance, experts from Virginia Tech College of Engineering designed machines modeled after jellyfish a few years ago. The human-sized robotic jellyfish called Cyro and the palm-sized device called RoboJelly are both designed to monitor the undersea environment.


Despite the jellyfish robots’ positive aspects, marine biologist John Turner from Bangor University has a minor concern. He said that turtles and large fish might mistake these robots for food, and ingesting the devices could harm the animals. Therefore, the professor suggests that engineers add features that will drive the creatures away from the robots.


Viewpoint Discussion

Enjoy a discussion with your tutor.

Discussion A

• Considering that other creatures can mistake animal-like robots for food, should engineers continue designing such machines? Explain.
• Do you think robots can explore the ocean ecosystem more effectively than humans? Discuss.

Discussion B

• If you were to create a robot modeled after an animal, what animal would it be? Give details.
• How do you think your invention would be useful (e.g. exploring the ocean)?