The 5 groups of Vertebrate worksheet - Free Printable

Let's solve this Animal Classification worksheet step by step.

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🔍 Step 1: Identify the two groups of animals

From the image:

- Left Group: Elephant, Cheetah, Lion, Rhinoceros, Zebra, Giraffe
→ These are all mammals.

- Right Group: Various birds (e.g., toucan, pelican, parrot, ostrich, crow, etc.)
→ These are all birds.

So, we classify them into:
- Group 1: Mammals
- Group 2: Birds

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Now, let’s fill in the table for each group.

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## ✔ Left Column – Mammals

| Category | Answer |
|--------|--------|
| Group Name: | Mammals |
| Breathing organ: | Lungs |
| Method of reproduction: | Viviparous (give birth to live young) |
| Body covering: | Hair or fur |
| Habitat (where they live?): | Land (various environments like savannas, forests, deserts) |
| Cold or warm blooded? | Warm-blooded |
| Give another 2 examples: | Dog, Cow |

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## ✔ Right Column – Birds

| Category | Answer |
|--------|--------|
| Group Name: | Birds |
| Breathing organ: | Lungs |
| Method of reproduction: | Oviparous (lay eggs) |
| Body covering: | Feathers |
| Habitat (where they live?): | Air, land, water (various environments including forests, oceans, deserts) |
| Cold or warm blooded? | Warm-blooded |
| Give another 2 examples: | Eagle, Duck |

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📝 Final Answer Table:

| Mammals | | Birds | |
|------------|----|----------|----|
| Group Name: | Mammals | Group Name: | Birds |
| Breathing organ: | Lungs | Breathing organ: | Lungs |
| Method of reproduction: | Viviparous (live birth) | Method of reproduction: | Oviparous (lay eggs) |
| Body covering: | Hair/fur | Body covering: | Feathers |
| Habitat (where they live?): | Land (savannas, forests, etc.) | Habitat (where they live?): | Air, land, water (forests, oceans, etc.) |
| Cold or warm blooded? | Warm-blooded | Cold or warm blooded? | Warm-blooded |
| Give another 2 examples: | Dog, Cow | Give another 2 examples: | Eagle, Duck |

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💡 Key Notes:

- Both mammals and birds are warm-blooded, meaning they regulate their body temperature internally.
- Even though both use lungs to breathe, their reproductive methods differ significantly.
- Mammals have hair/fur, while birds have feathers — a key distinguishing feature.

This classification helps students understand how animals are grouped based on shared characteristics.