Warm bodies , they have fur to keep them warm.
It is rephrased as mammals are homeothermic animals .
they r all mammals
all mammals descended from a common ancestor.
They are all animals. That is about it.
they are mammals they have brains and they are smart
Yes. All dolphins do because they are mammals. Few mammals lay eggs.
they all fall under myths
They breathe out carbon dioxide.
they're all mammals
All mammals evolved from a common ancestor, which was the very first mammal. That very first mammal had evolved from reptiles. As such, all mammals are equally related to reptiles.
The three most common factors among mammals are that they all breathe air, have red oxygenated blood, and all feed and protect their young.
They are all descended from a common ancestor.