Types of Animals

Mere som dette

glaciers melting

af Niamh Anderson

Animal Groups

af Judit Sancho

3314 Bassett

af David Bassett

Invertebrate Phylogenetic Tree

af Darby Rich

Types of Animals

Invertebrates

665 million year old fossils found

over 1 million

Subtopic

No backbone

Mammals

Oldest record mammal was 211.

5,000+

Milk fed

Warm blooded

Fur

Amphibians

Absorb water and oxygen though skin

Number of species

90% are frogs

8,000

Lay un-shelled eggs

Scaleless skin

Reptiles

Facts

Discovered 320 million years ago

Have backbones

Number in species

Approximately 10,000

Characteristics

Lay eggs

Scales

Cold blooded