Origin of birds

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/origin-of-birds

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. What is the scientific consensus?Birds are currently understood to be a clade of maniraptoran theropod dinosaurs
2. What is the diagnostic skeletal features?Pneumatized bones, gastroliths, and specific vertebral structures are shared characteristics
3. What does the scientific community say about where birds came from?Birds are a special group of dinosaurs called maniraptoran theropods. Fossils show many shared bones and feathers that link them.
4. Why do scientists think birds are related to dinosaurs?Birds share many detailed features with theropod dinosaurs, like hollow bones, stomach stones, and feathers. These similarities show a direct evolutionary line.

Phylogenetic: Relating to the evolutionary development and diversification of a species or group of organisms.
Clade: A group of organisms believed to have evolved from a common ancestor, including that ancestor.
Integumentary Structures: Features related to the outer covering of an animal, such as skin, scales, and feathers.