ASL What Are Chordates?

Подробнее о видео

Did you know you are a chordate? In this kids video, you'll learn a lot of interesting facts about chordates. All chordates are grouped into the phylum because, at some point in their life, they have a notochord, a dorsal nerve cord, pharyngeal slits (gills near the pharynx), and a muscular tail. The tail could remain into adulthood or disappear during embryonic development. They also all have a closed circulatory system with blood that flows through vessels and a heart with ventricles.

Scientists think the very first vertebrates evolved around 525 million years ago, but they can’t determine if it was Myllokunmingia or Pikaia gracilens. Try to say those words really fast! So while it feels like most of our planet is covered in vertebrates, only about 5% of all animal species are vertebrates.

All vertebrates have a backbone, an endoskeleton, two pairs of appendages, a skull, and a bilateral symmetry. And the animals in this phylum include mammals, birds, reptiles, fish, birds, and amphibians. Keep in mind that all vertebrates are chordates, but not all chordates are vertebrates!

We hope you and your student(s) enjoyed learning about the animals of this phylum! If you want to learn even more, head over to our website and download one of our many lesson plans about animals, full of activities, worksheets, and more!



Thank you for watching and learning with us! We’re constantly releasing new content and videos, so click that “Subscribe” button and you’ll get notified.

What you will learn in What Are Chordates?:
0:00 Introduction
0:23 The first animals with an internal skeleton
1:12 Characteristics of Phylum Chordata
2:19 Review of the facts

Find and Follow Us Online:
Facebook:
Instagram:
Pinterest:
YouTube: @LearnBright
Website:

*Teachers and Parents! Did you know? In addition to these great videos, we have also created a library of high-quality and engaging lessons for your elementary aged student(s). Visit us, sign up for a free account, and instantly you'll have access to thousands of lesson plans, learning materials, teaching instructions, activities, and assignments that your kids will really enjoy! We hope to see you soon!

Browse our entire collection of Science lesson plans:

#asl
#chordata
#phylum
#chordates