Class Mammalia
General Description
All mammals have hair and mammary glands.
They also have 3 middle ear bones, four chambered hearts,
a large cerebrum, endothermic,
and have large lungs with alveoli.
All mammals have hair and mammary glands.
They also have 3 middle ear bones, four chambered hearts,
a large cerebrum, endothermic,
and have large lungs with alveoli.
Specific Information
Their large cerebrum helps mammals have complex thoughts and emotions and the ability to communicate.
Mammals first appeared in the Cretaceous Period, 220 million years ago.
They were very small and were nocturnal.
After the dinosaurs died out, mammals grew in all aspects.
Their large cerebrum helps mammals have complex thoughts and emotions and the ability to communicate.
Mammals first appeared in the Cretaceous Period, 220 million years ago.
They were very small and were nocturnal.
After the dinosaurs died out, mammals grew in all aspects.
Characteristics of Mammals
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Mammal Groups
Taxonomic Relationship Between Mammals and Birds
Similarities
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Differences
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Phylogenetic Tree of Mammals
The Pudu Deer (Puda puda)
- Found in the rainforests of Argentina and Chile.
- The Pudu is the smallest deer species in the world. They stand just 600-825 mm tall.
- Their mating season is in the fall. Usually, the gestation period lasts 202-223 days and produces only one fawn.
- The average life span is 11 years.
- Pudus are herbivores, eating mainly fruits and small tree foliage.
- They are listed as endangered.