Chapter 2 Animals Chapter 2 Animals Lesson 1 How are Babies like their Lesson 1 How are Babies like their

Parents?Parents?

Pgs. A 32-A35Pgs. A 32-A35

Parents and BabiesParents and Babies Has anyone ever said you look like Has anyone ever said you look like

your parents?your parents?

In animal life cycles, a baby is born, In animal life cycles, a baby is born, then grows and has babies of its’ then grows and has babies of its’ own.own.

Animals go through different stages Animals go through different stages (see bird)(see bird)

Parents/ BabiesParents/ Babies

Some animals look like their parents Some animals look like their parents (Can you think of some examples?)(Can you think of some examples?)

Which animals look very different Which animals look very different from their parents?from their parents?

Every animal has a special way of Every animal has a special way of living, growing and reproducing!living, growing and reproducing!

Classifying AnimalsClassifying Animals

Scientists classify animals by the way Scientists classify animals by the way they look and how they livethey look and how they live

Let’s make a chart of places we’ve Let’s make a chart of places we’ve seen animals grow!seen animals grow!

Growing from EggsGrowing from Eggs Each animal has a life cycleEach animal has a life cycle

The FIRST STAGE IS ALWAYS THE The FIRST STAGE IS ALWAYS THE EGG!EGG!

The The eggegg protects an embryo and protects an embryo and makes food for it. makes food for it.

An An embryoembryo is a developing animal is a developing animal

EggsEggs Different kinds of animals make different Different kinds of animals make different

numbers of eggs!numbers of eggs!

Have you ever seen an egg before? Where Have you ever seen an egg before? Where at?at?

Birds and mammals make fewer eggs and Birds and mammals make fewer eggs and often care for and feed their babies until often care for and feed their babies until they grow big enough to be on their own! they grow big enough to be on their own!

Types of Egg ShellsTypes of Egg Shells

Some shells have hard shells! Can Some shells have hard shells! Can you think of an animal?you think of an animal?

Some animals have soft jelly-like Some animals have soft jelly-like eggs? Which animals have these?eggs? Which animals have these?

Dog and cat babies develop inside Dog and cat babies develop inside their mothers’ bodies their mothers’ bodies

Lesson 2 Spiders & Insects!!Lesson 2 Spiders & Insects!!

Can we think of any differences Can we think of any differences between spiders and insects?between spiders and insects?

Both have a life cycle, a backbone Both have a life cycle, a backbone and hard coverings outside their and hard coverings outside their body body

SpidersSpiders Spiders = ArachnidsSpiders = Arachnids

Spiders have 8 legs and 2 main body partsSpiders have 8 legs and 2 main body parts

Spiders do NOT have wings Spiders do NOT have wings

Spiders spin strong webs with sticky silk to trap their preySpiders spin strong webs with sticky silk to trap their prey

Spider mothers make silk sacs to store their tiny eggs! See Spider mothers make silk sacs to store their tiny eggs! See picture on pgs. A36picture on pgs. A36

They look the same as their parents when they’re born! They look the same as their parents when they’re born!

InsectsInsects

Insects have 6 legs and 3 main body Insects have 6 legs and 3 main body partsparts

Many have wings to fly!Many have wings to fly!

They are the LARGEST group of They are the LARGEST group of animals!animals!

Insect Life CycleInsect Life Cycle

Most insects lay eggs, but some do Most insects lay eggs, but some do notnot

They lay their eggs in a clump or just They lay their eggs in a clump or just one single eggone single egg

Most have a three-stage life cycle Most have a three-stage life cycle (Can you point to one?)(Can you point to one?)

Insect Life CycleInsect Life Cycle

1. Egg1. Egg

2. Nymph- the stage between egg 2. Nymph- the stage between egg and adult that looks like an adult but and adult that looks like an adult but has no wingshas no wings

3. Adult Stage 3. Adult Stage

Four Stage Life CyclesFour Stage Life Cycles

Butterflies, ants, moths and bees!Butterflies, ants, moths and bees!

1. Egg1. Egg 2. Larva or Caterpillar *different shape*2. Larva or Caterpillar *different shape* 3. Pupa3. Pupa 4. Butterfly or Adult 4. Butterfly or Adult

See pg. A39!See pg. A39!

Lesson 3 Fishes, Frogs and Lesson 3 Fishes, Frogs and MammalsMammals

Fishes AND Frogs have a BACKBONE!Fishes AND Frogs have a BACKBONE!

What is the job of your backbone?What is the job of your backbone?

They lay their soft eggs in waterThey lay their soft eggs in water

Oxygen passes through the shellsOxygen passes through the shells

AmphibiansAmphibians

They live part of their life on land and They live part of their life on land and in waterin water

Fish use gills to breathe in oxygenFish use gills to breathe in oxygen

Tadpoles use gills until they grow Tadpoles use gills until they grow into frogs. Then they use Lungs!into frogs. Then they use Lungs!

Life Cycle of a FrogLife Cycle of a Frog

1. Egg1. Egg 2. Tadpole2. Tadpole 3. Older Tadpole3. Older Tadpole 4. Adult Frog 4. Adult Frog

MammalsMammals

A Mammal is an animal that has a A Mammal is an animal that has a backbone and furbackbone and fur

Hair keeps the animal warmHair keeps the animal warm

Whiskers help the animal move around or Whiskers help the animal move around or feel thingsfeel things

They get their oxygen from their lungs!They get their oxygen from their lungs!

MammalsMammals

Some animals that have to come up out of Some animals that have to come up out of the water to get their oxygen are the water to get their oxygen are __________. __________.

Only mammals make milk for their babiesOnly mammals make milk for their babies

Most babies stay with their parents are Most babies stay with their parents are taught how to get food and be safe. taught how to get food and be safe.

Life Cycle of a MammalLife Cycle of a Mammal

1. Embryo1. Embryo 2. Babies2. Babies 3. Young Adults3. Young Adults 4. Adult 4. Adult

Lesson 4Lesson 4

How Do Babies Learn?How Do Babies Learn?

What are some ways that you think What are some ways that you think babies learn? babies learn?

Some Animals KnowSome Animals Know

Some Animals know how to do things Some Animals know how to do things right when they’re bornright when they’re born

Puppies get milk, chicks can peck, Puppies get milk, chicks can peck, caterpillars eat leaves, kangaroos caterpillars eat leaves, kangaroos can crawlcan crawl

They use They use instinctsinstincts without learning without learning

InstinctsInstincts

Birds know how to build nests (see Birds know how to build nests (see pictures)pictures)

Bees, ants and insects all make nests Bees, ants and insects all make nests for their babiesfor their babies

Monarch butterflies travel great Monarch butterflies travel great distances and spiders build the same distances and spiders build the same kinds of webs kinds of webs

Ways that Animals LearnWays that Animals Learn

Animals have to learn:Animals have to learn: 1. How to get food!1. How to get food! 2. how to take care of themselves2. how to take care of themselves

Animals learn by:Animals learn by: 2. watching their parents2. watching their parents 2. learn from other adults2. learn from other adults

Animals learn from each otherAnimals learn from each other

Animals, like chimps, learn from each Animals, like chimps, learn from each other other

Animals learn by making mistakes Animals learn by making mistakes and practicing! ( If a bird falls, he and practicing! ( If a bird falls, he tries to fly again!) tries to fly again!)