This document discusses characteristics of mammals, including that they are warm-blooded vertebrates that give live birth, possess hair and advanced nervous and reproductive systems, and feed their young with milk directly from the mother. Mammals are considered the most advanced members of the animal kingdom and share fundamental similarities in body structure, though they can live on land, sea or air and most have four legs and protruding ears.

2. • They have a highly developed brain.
• They have a developed skeleton.

3. • They have an advanced nervous system.
• They adaptable to land, sea and air.

4. • Most vertebrates can move.
• They have a respiratory system.

5. • They have a bilateral symmetry plan.
• Vertebrates are only 2% of the animal species.

6. • Vertebrates are heterotrophic.
• Humans are vertebrates.

8. • Mammals are viviparous.
• They possess hair in all parts of their bodies.

9. • Mammals have developed nervous and
reproductive systems.
• They are considered the most advanced
members of the animal kingdom.
Mammals

10. • They are warm-blooded and their body
temperature is constant.
• Mammals are fundamentally similar in body
structure.

11. • Most Mammals live on land.
• Most Mammals have four legs and ears that
stick out.
land
Four legs
Ears that stick out

12. • They have lungs and they need air to
breathe.
• Mammal mothers feed their young babies
with milk.