Animals are separated into

groups or categories so that

they are more easily studied

and discussed by scientists

and others.

Classification?

Mammals

Fish

Birds

Reptiles

Amphibians

Mammals

Characteristics:

Have teeth

Have hair

Are warm blooded

Have a single jaw bone

Have inner ear bones

Produce milk for their young

Mammals

Mammals have larger brains and

seem to be the most capable lear

ners.

All mammalian mothers nourish

their babies with milk.

Fish

Characteristics:

Are cold-blooded vertebrate (backbone)

Live in water

Usually have paired fins, gills, and scales

Fish

Most fish lay large numbers of

eggs, but some have live birth.

Most fish breathe by drawing

water over four or five pairs of

gills.

Amphibians

Characteristics:

Are cold-blooded vertebrate (backbone)

Lay their eggs in water

Lack any skin coverings such as fur, scales or feathers

Amphibians

Young amphibians tend to resemble small fish.

Amphibian means "two lives," a reference to the change that frogs go through as they move from egg to tadpole to frog.

Even as adults, most frogs and other amphibians must stay close to water.

Birds

Characteristics:

Have feathers

Lay eggs

Have bodies specially adapted for

flight

Have a beak rather than teeth

Birds

Their nearly hollow bones

provide lightweight strength.

Birds now live almost

everywhere on Earth.

Characteristics:

Have scales

Lay leathery eggs on land

Are often called cold-blooded

because they can't regulate their

own body temperature

Reptiles

Reptiles do not use energy to fuel

internal "furnaces"

Although reptiles breathe through

lungs, some reptiles can also

absorb oxygen in water through

their mouth.

Reptiles

Resources

Quia Classification Quiz

Charts: Animal

classification, Fish, Bird,

Amphibian, Animals,

The Animal Kingdom

Resources http://www.nmnh.si.edu/BIRDNET/

http://falcon.jmu.edu/~ramseyil/vertebrates.htm

http://www.edhelper.com/AnimalReadingComprehension_1_1.html

http://www.edhelper.com/animals.htm

http://animaldiversity.ummz.umich.edu/site/index.html

http://anthro.palomar.edu/animal/links.htm

http://www.dowslane.org/reptile.html

http://www.seaworld.org/animal-info/animal-bytes/index.htm

http://www.hhmi.org/coolscience/critters/critters.html

http://www.quia.com/servlets/quia.activities.common.ActivityPlayer?AP_rand

=785616651&AP_activityType=14&AP_urlId=1130&AP_continuePlay=true&i

d=1130

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