Plesiosaur

High school (ages 12+)
Animals & Nature

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/plesiosaur

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How big is Plesiosaur?Maximum length up to 16 meters (52 feet); massive body weight
2. What is the scientific name?Plesiosaurus
3. What is the habitat?Global marine environments, including epicontinental seas, continental shelves, and open ocean
4. Why did plesiosaurs have such long necks?Their necks were very long in some species, which helped them catch fast‑moving prey. The neck length varied, from very long in plesiosauroids to shorter in pliosauroids.
5. How did plesiosaurs swim?They used four large flippers and specially shaped shoulder and hip bones to push and steer through the water. This made them powerful swimmers in both shallow and open seas.

Clade: A group of organisms believed to have evolved from a common ancestor.
Trophic Level: The position an organism occupies in a food chain or food web.
Gastroliths: Stones swallowed by an animal to aid in grinding food in the stomach.
K-selected Species: Species that produce a few offspring and invest significant time and energy in their care.